Engine Mechanical - 4.8L, 5.3L & 6.0L: Specifications — Engine Mechanical - 4.8L, 5.3L & 6.0L — Mechanical

Fastener Tightening Specifications

Application	Specification
Application	Metric	English
Air Cleaner Outlet Duct Clamp	7 N.m	62 lb in
Air Conditioning Belt Tensioner Bolt	50 N.m	37 lb ft
Battery Cable Channel Bolt	12 N.m	106 lb in
Camshaft Retainer Bolts	25 N.m	18 lb ft
Camshaft Sensor Bolt	25 N.m	18 lb ft
Camshaft Sprocket Bolts	35 N.m	26 lb ft
Connecting Rod Bolts - First Pass	20 N.m	15 lb ft
Connecting Rod Bolts - Final Pass	75 degrees
Coolant Temperature Gage Sensor	20 N.m	15 lb ft
Crankshaft Balancer Bolt - Installation Pass - to Ensure the Balancer is Completely Installed	330 N.m	240 lb ft
Crankshaft Balancer Bolt - First Pass - Install a NEW Bolt After the Installation Pass and Tighten as Described in the First and Final Passes	50 N.m	37 lb ft
Crankshaft Balancer Bolt - Final Pass	140 degrees
Crankshaft Bearing Cap Bolts - Inner Bolts - First Pass in Sequence	20 N.m	15 lb ft
Crankshaft Bearing Cap Bolts - Inner Bolts - Final Pass in Sequence	80 degrees
Crankshaft Bearing Cap Bolts - Outer Bolts - First Pass in Sequence	20 N.m	15 lb ft
Crankshaft Bearing Cap Bolts - Outer Bolts - Final Pass in Sequence	51 degrees
Crankshaft Bearing Cap Side Bolts	25 N.m	18 lb ft
Crankshaft Oil Deflector Nuts	25 N.m	18 lb ft
Crankshaft Position Sensor Bolt	25 N.m	18 lb ft
Crossbar Bolt	100 N.m	74 lb ft
Cylinder Head Bolts - First Pass all M11 Bolts in Sequence	30 N.m	22 lb ft
Cylinder Head Bolts - Second Pass all M11 Bolts in Sequence	90 degrees
Cylinder Head Bolts - Final Pass all M11 Bolts in Sequence -Excluding the Medium Length Bolts at the Front and Rear of Each Cylinder Head	90 degrees
Cylinder Head Bolts - Final Pass M11 Medium Length Bolts at the Front and Rear of Each Cylinder Head in Sequence	50 degrees
Cylinder Head Bolts - M8 Inner Bolts in Sequence	30 N.m	22 lb ft
Cylinder Head Coolant Plug	20 N.m	15 lb ft
Differential Carrier Lower Mounting Bolt/Nut	100 N.m	74 lb ft
Drive Belt Idler Pulley Bolt	50 N.m	37 lb ft
Drive Belt Tensioner Bolt	50 N.m	37 lb ft
Engine Block Coolant Drain Plugs	60 N.m	44 lb ft
Engine Block Heater	40 N.m	30 lb ft
Engine Block Oil Gallery Plugs	60 N.m	44 lb ft
Engine Coolant Air Bleed Pipe and Cover Bolts	12 N.m	106 lb in
Engine Flywheel Bolts - First Pass	20 N.m	15 lb ft
Engine Flywheel Bolts - Second Pass	50 N.m	37 lb ft
Engine Flywheel Bolts - Final Pass	100 N.m	74 lb ft
Engine Front Cover Bolts	25 N.m	18 lb ft
Engine Harness Ground Bolt - Right Rear	16 N.m	12 lb ft
Engine Harness Ground Bolt-to-Block	25 N.m	18 lb ft
Engine Mount Bolt-to-Engine Bracket	50 N.m	37 lb ft
Engine Mount Frame Bracket Through Bolt	75 N.m	55 lb ft
Engine Mount Frame Side Mount Bolt	65 N.m	50 lb ft
Engine Mount-to-Engine Bracket Bolt	50 N.m	37 lb ft
Engine Rear Cover Bolts	25 N.m	18 lb ft
Engine Service Lift Bracket M10 Bolts	50 N.m	37 lb ft
Engine Service Lift Bracket M8 Bolt	25 N.m	18 lb ft
Engine Shield Bolt	20 N.m	15 lb ft
Engine Valley Cover Bolts	25 N.m	18 lb ft
Engine Wiring Harness Bracket Nut	5 N.m	44 lb in
Evaporative Emission (EVAP) Purge Solenoid Bolt	10 N.m	89 lb in
Exhaust Manifold Bolts - First Pass	15 N.m	11 lb ft
Exhaust Manifold Bolts - Final Pass	25 N.m	18 lb ft
Exhaust Manifold Heat Shield Bolts	9 N.m	80 lb in
Fuel Rail Bolts	10 N.m	89 lb in
Fuel Rail Cover Bolt	9 N.m	80 lb in
Fuel Rail Crossover Tube Bolts	3.8 N.m	34 lb in
Fuel Rail Stop Bracket Bolt	50 N.m	37 lb ft
Generator Bracket Bolt	50 N.m	37 lb ft
Generator Cable Nut	9 N.m	80 lb in
Heater Hose Bracket Nut	9 N.m	80 lb in
Hood Hinge Bolt	25 N.m	18 lb ft
Ignition Coil-to-Bracket Bolts	8 N.m	71 lb in
Ignition Coil Bracket-to-Valve Rocker Arm Cover Bolts	12 N.m	106 lb in
Inner Axle Housing Nut	100 N.m	74 lb ft
Intake Manifold Bolts - First Pass in Sequence	5 N.m	44 lb in
Intake Manifold Bolts - Final Pass in Sequence	10 N.m	89 lb in
Intake Manifold Sight Shield Bolts	10 N.m	89 lb in
Intake Manifold Sight Shield Bracket Bolts	5 N.m	45 lb in
Intake Manifold Sight Shield Retainer Bolt	5 N.m	44 lb in
Intake Manifold Wiring Harness Stud	10 N.m	89 lb in
Knock Sensors	20 N.m	15 lb ft
Oil Filter	30 N.m	22 lb ft
Oil Filter Fitting	55 N.m	40 lb ft
Oil Level Indicator Tube Bolt	25 N.m	18 lb ft
Oil Level Sensor	13 N.m	115 lb in
Oil Pan Baffle Bolts	12 N.m	106 lb in
Oil Pan Closeout Cover Bolt - Left Side	9 N.m	80 lb in
Oil Pan Closeout Cover Bolt - Right Side	9 N.m	80 lb in
Oil Pan Cover Bolts	12 N.m	106 lb in
Oil Pan Drain Plug	25 N.m	18 lb ft
Oil Pan M8 Bolts - Oil Pan-to-Engine Block and Oil Pan-to-Front Cover	25 N.m	18 lb ft
Oil Pan M6 Bolts - Oil Pan-to-Rear Cover	12 N.m	106 lb in
Oil Pan Skid Plate Bolt	20 N.m	15 lb ft
Oil Pressure Sensor	20 N.m	15 lb ft
Oil Pump-to-Engine Block Bolts	25 N.m	18 lb ft
Oil Pump Cover Bolts	12 N.m	106 lb in
Oil Pump Relief Valve Plug	12 N.m	106 lb in
Oil Pump Screen Nuts	25 N.m	18 lb ft
Oil Pump Screen-to-Oil Pump Bolt	12 N.m	106 lb in
Positive Battery Cable Clip Bolt	9 N.m	80 lb in
Power Steering Pump Rear Bolt	50 N.m	37 lb ft
Spark Plugs - New Cylinder Heads	20 N.m	15 lb ft
Spark Plugs - All Subsequent Installations	15 N.m	11 lb ft
Throttle Body Nuts	10 N.m	89 lb in
Throttle Body Studs	6 N.m	53 lb in
Torque Converter Bolt - 4L60-E/4L65-E Transmissions	63 N.m	47 lb ft
Torque Converter Bolt - 4L80-E/4L85-E Transmissions	60 N.m	44 lb ft
Transmission Bolt/Stud	50 N.m	37 lb ft
Transmission Cover Bolt	12 N.m	106 lb in
Transmission Oil Level Indicator Tube Nut	18 N.m	13 lb ft
Valve Lifter Guide Bolts	12 N.m	106 lb in
Valve Rocker Arm Bolts	30 N.m	22 lb ft
Valve Rocker Arm Cover Bolts	12 N.m	106 lb in
Water Inlet Housing Bolts	15 N.m	11 lb ft
Water Pump Bolts - First Pass	15 N.m	11 lb ft
Water Pump Bolts - Final Pass	30 N.m	22 lb ft
Water Pump Cover Bolts	15 N.m	11 lb ft

FASTENER TIGHTENING SPECIFICATIONS

Engine Mechanical Specifications (LR4 VIN V)

Application		Specification
Application		Metric	English
General
	Engine Type	V 8
	Displacement	4.8L	293 CID
	RPO	LR4
	VIN	V
	Bore	96.0-96.018 mm	3.779-3.78 in
	Stroke	83.0 mm	3.268 in
	Compression Ratio	9.47:1
	Firing Order	1-8-7-2-6-5-4-3
	Spark Plug Gap	1.524 mm	0.06 in
Block
	Camshaft Bearing Bore Diameter	55.063-55.088 mm	2.168-2.169 in
	Crankshaft Main Bearing Bore Diameter	69.871-69.889 mm	2.75-2.751 in
	Crankshaft Main Bearing Bore Out-of-Round	0.006 mm	0.0002 in
	Cylinder Bore Diameter	96.0-96.018 mm	3.779-3.78 in
	Cylinder Bore Taper - Thrust Side	0.018 mm	0.0007 in
	Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face	234.57-234.82 mm	9.235-9.245 in
	Cylinder Head Deck Surface Flatness - Measured Within a 152.4 mm (6.0 in) Area	0.11 mm	0.004 in
	Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck	0.22 mm	0.008 in
	Valve Lifter Bore Diameter	21.417-21.443 mm	0.843-0.844 in
Camshaft
	Camshaft End Play	0.025-0.305 mm	0.001-0.012 in
	Camshaft Journal Diameter	54.99-55.04 mm	2.164-2.166 in
	Camshaft Journal Out-of-Round	0.025 mm	0.001 in
	Camshaft Lobe Lift - Exhaust	6.96 mm	0.274 in
	Camshaft Lobe Lift - Intake	6.82 mm	0.268 in
	Camshaft Runout - Measured at the Intermediate Journals	0.05 mm	0.002 in
Connecting Rod
	Connecting Rod Bearing Clearance - Production	0.023-0.065 mm	0.0009-0.0025 in
	Connecting Rod Bearing Clearance - Service	0.023-0.076 mm	0.0009-0.003 in
	Connecting Rod Bore Diameter - Bearing End	56.505-56.525 mm	2.224-2.225 in
	Connecting Rod Bore Out-of-Round - Bearing End - Production	0.004-0.008 mm	0.00015-0.0003 in
	Connecting Rod Bore Out-of-Round - Bearing End - Service	0.004-0.008 mm	0.00015-0.0003 in
	Connecting Rod Side Clearance	0.11-0.51 mm	0.00433-0.02 in
Crankshaft
	Connecting Rod Journal Diameter - Production	53.318-53.338 mm	2.0991-2.0999 in
	Connecting Rod Journal Diameter - Service	53.308 mm	2.0987 in
	Connecting Rod Journal Out-of-Round - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Out-of-Round - Service	0.01 mm	0.0004 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Service	0.02 mm	0.00078 in
	Crankshaft End Play	0.04-0.2 mm	0.0015-0.0078 in
	Crankshaft Main Bearing Clearance - Production	0.02-0.052 mm	0.0008-0.0021 in
	Crankshaft Main Bearing Clearance - Service	0.02-0.065 mm	0.0008-0.0025 in
	Crankshaft Main Journal Diameter - Production	64.993-65.007 mm	2.558-2.559 in
	Crankshaft Main Journal Diameter - Service	64.993 mm	2.558 in
	Crankshaft Main Journal Out-of-Round - Production	0.003 mm	0.000118 in
	Crankshaft Main Journal Out-of-Round - Service	0.008 mm	0.0003 in
	Crankshaft Main Journal Taper - Production	0.01 mm	0.0004 in
	Crankshaft Main Journal Taper - Service	0.02 mm	0.00078 in
	Crankshaft Rear Flange Runout	0.05 mm	0.002 in
	Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter	0.7 mm	0.028 in
	Crankshaft Thrust Surface - Production	26.14-26.22 mm	1.029-1.0315 in
	Crankshaft Thrust Surface - Service	26.22 mm	1.0315 in
	Crankshaft Thrust Surface Runout	0.025 mm	0.001 in
Cylinder Head
	Cylinder Head Height/Thickness - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface	120.2 mm	4.732 in
	Surface Flatness - Block Deck - Measured Within a 152.4 mm (6.0 in) Area	0.08 mm	0.003 in
	Surface Flatness - Block Deck - Measuring the Overall Length of the Cylinder Head	0.1 mm	0.004 in
	Surface Flatness - Exhaust Manifold Deck	0.13 mm	0.005 in
	Surface Flatness - Intake Manifold Deck	0.08 mm	0.0031 in
	Valve Guide Installed Height - Measured from the Spring Seat Surface to the Top of the Guide	17.32 mm	0.682 in
Intake Manifold
	Surface Flatness - Measured at Gasket Sealing Surfaces and Measured Within a 200 mm (7.87 in) Area that Includes Two Runner Port Openings	0.3 mm	0.118 in
Lubrication System
	Oil Capacity - with Filter	5.68 Liters	6.0 Quarts
	Oil Capacity - without Filter	4.73 Liters	5.0 Quarts
		41 kPa at 1,000 engine RPM	6 psig at 1,000 engine RPM
	Oil Pressure - Minimum - Hot	124 kPa at 2,000 engine RPM	18 psig at 2,000 engine RPM
		165 kPa at 4,000 engine RPM	24 psig at 4,000 engine RPM
Oil Pan
	Front Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Rear Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting Surface	0.0-0.25 mm	0.0-0.01 in
Piston Rings
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production	0.23-0.44 mm	0.009-0.017 in
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Service	0.23-0.5 mm	0.009-0.0196 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production	0.44-0.7 mm	0.017-0.027 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service	0.44-0.76 mm	0.0173-0.03 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production	0.18-0.75 mm	0.007-0.029 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Servive	0.18-0.81 mm	0.007-0.032 in
	Piston Ring to Groove Clearance - First Compression Ring - Production	0.04-0.085 mm	0.00157-0.00335 in
	Piston Ring to Groove Clearance - First Compression Ring - Service	0.04-0.085 mm	0.00157-0.00335 in
	Piston Ring to Groove Clearance - Second Compression Ring - Production	0.04-0.078 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - Second Compression Ring - Service	0.04-0.078 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - Oil Control Ring - Production	0.012-0.2 mm	0.0005-0.0078 in
	Piston Ring to Groove Clearance - Oil Control Ring - Service	0.012-0.2 mm	0.0005-0.0078 in
Pistons and Pins
	Piston - Piston Diameter - Measured Over Skirt Coating	96.002-96.036 mm	3.779-3.78 in
	Piston - Piston to Bore Clearance - Production	0.036 to 0.016 mm	0.0014 to 0.0006 in
	Piston - Piston to Bore Clearance - Service Limit with Skirt Coating Worn Off	0.071 mm	0.0028 in
	Pin - Piston Pin Fit in Connecting Rod Bore	0.02-0.043 mm - interference	0.00078-0.00169 in - interference
	Pin - Piston Pin Clearance to Piston Pin Bore - Production	0.007-0.02 mm	0.00027-0.00078 in
	Pin - Piston Pin Clearance to piston Pin Bore - Service	0.007-0.021 mm	0.00027-0.00082 in
	Pin - Piston Pin Diameter	23.997-24.0 mm	0.9447-0.9448 in
Valve System
	Valves - Valve Face Angle	45 degrees
	Valves - Valve Face Width	1.25 mm	0.05 in
	Valves - Valve Lash	Net Lash - No Adjustment
	Valves - Valve Lift - Intake	11.6 mm	0.457 in
	Valves - Valve Lift - Exhaust	11.85 mm	0.466 in
	Valves - Valve Seat Angle	46 degrees
	Valves - Valve Seat Runout	0.05 mm	0.002 in
	Valves - Valve Seat Width - Exhaust	1.78 mm	0.07 in
	Valves - Seat Width - Intake	1.02 mm	0.04 in
	Valves - Valve Stem Diameter - Production	7.955-7.976 mm	0.313-0.314 in
	Valves - Valve Stem Diameter - Service	7.95 mm	0.313 in
	Valves - Stem-to-Guide Clearance - Production - Intake	0.025-0.066 mm	0.001-0.0026 in
	Valves - Stem-to-Guide Clearance - Service - Intake	0.093 mm	0.0037 in
	Valves - Stem-to-Guide Clearance - Production - Exhaust	0.025-0.066 mm	0.001-0.0026 in
	Valves - Stem-to-Guide Clearance - Service - Exhaust	0.093 mm	0.0037 in
	Rocker Arms - Valve Rocker Arm Ratio	1.70:1
	Valve Springs - Valve Spring Free Length	52.9 mm	2.08 in
	Valve Springs - Installed Height	45.75 mm	1.8 in
	Valve Springs - Valve Spring Load - Closed	340 N at 45.75 mm	76 lb at 1.8 in
	Valve Springs - Valve Spring Load - Open	980 N at 33.55 mm	220 lb at 1.32 in

ENGINE MECHANICAL SPECIFICATIONS (LR4 VIN V)

Engine Mechanical Specifications (LM7 VIN T)

Application		Specification
Application		Metric	English
General
	Engine Type	V8
	Displacement	5.3L	325 CID
	RPO	LM7
	VIN	T
	Bore	96.0-96.018 mm	3.779-3.78 in
	Stroke	92.0 mm	3.622 in
	Compression Ratio	9.49:1
	Firing Order	1-8-7-2-6-5-4-3
	Spark Plug Gap	1.524 mm	0.06 in
Block
	Camshaft Bearing Bore Diameter	55.063-55.088 mm	2.168-2.169 in
	Crankshaft Main Bearing Bore Diameter	69.871-69.889 mm	2.75-2.751 in
	Crankshaft Main Bearing Bore Out-of-Round	0.006 mm	0.0002 in
	Cylinder Bore Diameter	96.0-96.018 mm	3.779-3.78 in
	Cylinder Bore Taper - Thrust Side	0.018 mm	0.0007 in
	Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face	234.57-234.82 mm	9.235-9.245 in
	Cylinder Head Deck Surface Flatness - Measured Within a 152.4 mm (6.0 in) Area	0.11 mm	0.004 in
	Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck	0.22 mm	0.008 in
	Valve Lifter Bore Diameter	21.417-21.443 mm	0.843-0.844 in
Camshaft
	Camshaft End Play	0.025-0.305 mm	0.001-0.012 in
	Camshaft Journal Diameter	54.99-55.04 mm	2.164-2.166 in
	Camshaft Journal Out-of-Round	0.025 mm	0.001 in
	Camshaft Lobe Lift - Exhaust	6.96 mm	0.274 in
	Camshaft Lobe Lift - Intake	6.82 mm	0.268 in
	Camshaft Runout - Measured at the Intermediate Journals	0.05 mm	0.002 in
Connecting Rod
	Connecting Rod Bearing Clearance - Production	0.023-0.065 mm	0.0009-0.0025 in
	Connecting Rod Bearing Clearance - Service	0.023-0.076 mm	0.0009-0.003 in
	Connecting Rod Bore Diameter - Bearing End	56.505-56.525 mm	2.224-2.225 in
	Connecting Rod Bore Out-of-Round - Bearing End - Production	0.004-0.008 mm	0.00015-0.0003 in
	Connecting Rod Bore Out-of-Round - Bearing End - Service	0.004-0.008 mm	0.00015-0.0003 in
	Connecting Rod Side Clearance	0.11-0.51 mm	0.00433-0.02 in
Crankshaft
	Connecting Rod Journal Diameter - Production	53.318-53.338 mm	2.0991-2.0999 in
	Connecting Rod Journal Diameter - Service	53.308 mm	2.0987 in
	Connecting Rod Journal Out-of-Round - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Out-of-Round - Service	0.01 mm	0.0004 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Service	0.02 mm	0.00078 in
	Crankshaft End Play	0.04-0.2 mm	0.0015-0.0078 in
	Crankshaft Main Bearing Clearance - Production	0.02-0.052 mm	0.0008-0.0021 in
	Crankshaft Main Bearing Clearance - Service	0.02-0.065 mm	0.0008-0.0025 in
	Crankshaft Main Journal Diameter - Production	64.993-65.007 mm	2.558-2.559 in
	Crankshaft Main Journal Diameter - Service	64.993 mm	2.558 in
	Crankshaft Main Journal Out-of-Round - Production	0.003 mm	0.000118 in
	Crankshaft Main Journal Out-of-Round - Service	0.008 mm	0.0003 in
	Crankshaft Main Journal Taper - Production	0.01 mm	0.0004 in
	Crankshaft Main Journal Taper - Service	0.02 mm	0.00078 in
	Crankshaft Rear Flange Runout	0.05 mm	0.002 in
	Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter	0.7 mm	0.028 in
	Crankshaft Thrust Surface - Production	26.14-26.22 mm	1.029-1.0315 in
	Crankshaft Thrust Surface - Service	26.22 mm	1.0315 in
	Crankshaft Thrust Surface Runout	0.025 mm	0.001 in
Cylinder Head
	Cylinder Head Height/Thickness - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface	120.2 mm	4.732 in
	Surface Flatness - Block Deck - Measured Within a 152.4 mm (6.0 in) Area	0.08 mm	0.003 in
	Surface Flatness - Block Deck - Measuring the Overall Length of the Cylinder Head	0.1 mm	0.004 in
	Surface Flatness - Exhaust Manifold Deck	0.13 mm	0.005 in
	Surface Flatness - Intake Manifold Deck	0.08 mm	0.0031 in
	Valve Guide Installed Height - Measured from the Spring Seal Surface to the Top of the Guide	17.32 mm	0.682 in
Intake Manifold
	Surface Flatness - Measured at Gasket Sealing Surfaces and Measured Within a 200 mm (7.87 in) Area that Includes Two Runner Port Openings	0.3 mm	0.118 in
Lubrication System
	Oil Capacity - with Filter	5.68 Liters	6.0 Quarts
	Oil Capacity - without Filter	4.73 Liters	5.0 Quarts
		41 kPa at 1,000 engine RPM	6 psig at 1,000 engine RPM
	Oil Pressure - Minimum - Hot	124 kPa at 2,000 engine RPM	18 psig at 2,000 engine RPM
		165 kPa at 4,000 engine RPM	24 psig at 4,000 engine RPM
Oil Pan
	Front Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Rear Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting Surface	0.0-0.25 mm	0.0-0.01 in
Piston Rings
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production	0.23-0.44 mm	0.009-0.017 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production	0.44-0.7 mm	0.017-0.027 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service	0.44-0.76 mm	0.0173-0.03 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production	0.18-0.75 mm	0.007-0.029 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service	0.18-0.81 mm	0.007-0.032 in
	Piston Ring to Groove Clearance - First Compression Ring - Production	0.04-0.085 mm	0.00157-0.00335 in
	Piston Ring to Groove Clearance - First Compression Ring - Service	0.04-0.085 mm	0.00157-0.00335 in
	Piston Ring to Groove Clearance - Second Compression Ring - Production	0.04-0.078 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - Second Compression Ring - Service	0.04-0.078 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - Oil Control Ring - Production	0.012-0.2 mm	0.0005-0.0078 in
	Piston Ring to Groove Clearance - Oil Control Ring - Service	0.012-0.2 mm	0.0005-0.0078 in
Pistons and Pins
	Piston - Piston Diameter - Measured Over Skirt Coating	96.002-96.036 mm	3.779-3.78 in
	Piston - Piston to Bore Clearance - Production	0.036 to 0.016 mm	0.0014 to 0.0006 in
	Piston - Piston to Bore Clearance - Service Limit with Skirt Coating Worn Off	0.071 mm	0.0028 in
	Pin - Piston Pin Fit in Connecting Rod Bore	0.02-0.043 mm - interference	0.00078-0.00169 in - interference
	Pin - Piston Pin Clearance to Piston Pin Bore - Production	0.007-0.02 mm	0.00027-0.00078 in
	Pin - Piston Pin Clearance to Piston Pin Bore - Service	0.007-0.021 mm	0.00027-0.00082 in
	Pin - Piston Pin Diameter	23.997-24.0 mm	0.9447-0.9448 in
Valve System
	Valves - Valve Face Angle	45 degrees
	Valves - Valve Face Width	1.25 mm	0.05 in
	Valves - Valve Lash	Net Lash - No Adjustment
	Valves - Valve Lift - Intake	11.6 mm	0.457 in
	Valves - Valve Lift - Exhaust	11.85 mm	0.466 in
	Valves - Valve Seat Angle	46 degrees
	Valves - Valve Seat Runout	0.05 mm	0.002 in
	Valves - Valve Seat Width - Exhaust	1.78 mm	0.07 in
	Valves - Seat Width - Intake	1.02 mm	0.04 in
	Valves - Valve Stem Diameter - Production	7.955-7.976 mm	0.313-0.314 in
	Valves - Valve Stem Diameter - Service	7.95 mm	0.313 in
	Valves - Valve Stem-to-Guide Clearance - Production - Intake	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Intake	0.093 mm	0.0037 in
	Valves - Valve Stem-to-Guide Clearance - Production - Exhaust	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Exhaust	0.093 mm	0.0037 in
	Rocker Arms - Valve Rocker Arm Ratio	1.70:1
	Valve Springs - Valve Spring Free Length	52.9 mm	2.08 in
	Valve Springs - Valve Spring Installed Height	45.75 mm	1.8 in
	Valve Springs - Valve Spring Load - Closed	340 N at 45.75 mm	76 lb at 1.8 in
	Valve Springs - Valve Spring Load - Open	980 N at 33.55 mm	220 lb at 1.32 in

ENGINE MECHANICAL SPECIFICATIONS (LM7 VIN T)

Engine Mechanical Specifications (L59 VIN Z)

Application		Specification
Application		Metric	English
General
	Engine Type	V 8
	Displacement	5.3L	325 CID
	RPO	L59
	VIN	Z
	Bore	96.0-96.018 mm	3.779-3.78 in
	Stroke	92.0 mm	3.622 in
	Compression Ratio	9.49:1
	Firing Order	1-8-7-2-6-5-4-3
	Spark Plug Gap	1.524 mm	0.06 in
Block
	Camshaft Bearing Bore Diameter	55.063-55.088 mm	2.168-2.169 in
	Crankshaft Main Bearing Bore Diameter	69.871-69.889 mm	2.75-2.751 in
	Crankshaft Main Bearing Bore Out-of-Round	0.006 mm	0.0002 in
	Cylinder Bore Diameter	96.0-96.018 mm	3.779-3.78 in
	Cylinder Bore Taper - Thrust Side	0.018 mm	0.0007 in
	Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face	234.57-234.82 mm	9.235-9.245 in
	Cylinder Head Deck Surface Flatness - Measured Within a 152.4 mm (6.0 in) Area	0.11 mm	0.004 in
	Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck	0.22 mm	0.008 in
	Valve Lifter Bore Diameter	21.417-21.443 mm	0.843-0.844 in
Camshaft
	Camshaft End Play	0.025-0.305 mm	0.001-0.012 in
	Camshaft Journal Diameter	54.99-55.04 mm	2.164-2.166 in
	Camshaft Journal Out-of-Round	0.025 mm	0.001 in
	Camshaft Lobe Lift - Exhaust	6.96 mm	0.274 in
	Camshaft Lobe Lift - Intake	6.82 mm	0.268 in
	Camshaft Runout - Measured at the Intermediate Journals	0.05 mm	0.002 in
Connecting Rod
	Connecting Rod Bearing Clearance - Production	0.023-0.065 mm	0.0009-0.0025 in
	Connecting Rod Bearing Clearance - Service	0.023-0.076 mm	0.0009-0.003 in
	Connecting Rod Bore Diameter - Bearing End	56.505-56.525 mm	2.224-2.225 in
	Connecting Rod Bore Out-of-Round - Bearing End - Production	0.004-0.008 mm	0.00015-0.0003 in
	Connecting Rod Bore Out-of-Round - Bearing End - Service	0.004-0.008 mm	0.00015-0.0003 in
	Connecting Rod Side Clearance	0.11-0.51 mm	0.00433-0.02 in
Crankshaft
	Connecting Rod Journal Diameter - Production	53.318-53.338 mm	2.0991-2.0999 in
	Connecting Rod Journal Diameter - Service	53.308 mm	2.0987 in
	Connecting Rod Journal Out-of-Round - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Out-of-Round - Service	0.01 mm	0.0004 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Service	0.02 mm	0.00078 in
	Crankshaft End Play	0.04-0.2 mm	0.0015-0.0078 in
	Crankshaft Main Bearing Clearance - Production	0.02-0.052 mm	0.0008-0.0021 in
	Crankshaft Main Bearing Clearance - Service	0.02-0.065 mm	0.0008-0.0025 in
	Crankshaft Main Journal Diameter - Production	64.993-65.007 mm	2.558-2.559 in
	Crankshaft Main Journal Diameter - Service	64.993 mm	2.558 in
	Crankshaft Main Journal Out-of-Round - Production	0.003 mm	0.000118 in
	Crankshaft Main Journal Out-of-Round - Service	0.008 mm	0.0003 in
	Crankshaft Main Journal Taper - Production	0.01 mm	0.0004 in
	Crankshaft Main Journal Taper - Service	0.02 mm	0.00078 in
	Crankshaft Rear Flange Runout	0.05 mm	0.002 in
	Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter	0.7 mm	0.028 in
	Crankshaft Thrust Surface - Production	26.14-26.22 mm	1.029-1.0315 in
	Crankshaft Thrust Surface - Service	26.22 mm	1.0315 in
	Crankshaft Thrust Surface Runout	0.025 mm	0.001 in
Cylinder Head
	Cylinder Head Height/Thickness - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface	120.2 mm	4.732 in
	Surface Flatness - Block Deck - Measured Within a 152.4 mm (6.0 in) Area	0.08 mm	0.003 in
	Surface Flatness - Block Deck - Measuring the Overall Length of the Cylinder Head	0.1 mm	0.004 in
	Surface Flatness - Exhaust Manifold Deck	0.13 mm	0.005 in
	Surface Flatness - Intake Manifold Deck	0.08 mm	0.0031 in
	Valve Guide Installed Height - Measured from the Spring Seat Surface to the Top of the Guide	17.32 mm	0.682 in
Intake Manifold
	Surface Flatness - Measured at Gasket Sealing Surfaces and Measured Within a 200 mm (7.87 in) Area that Includes Two Runner Port Openings	0.3 mm	0.118 in
Lubrication System
	Oil Capacity - with Filter	5.68 Liters	6.0 Quarts
	Oil Capacity - without Filter	4.73 Liters	5.0 Quarts
		41 kPa at 1,000 engine RPM	6 psig at 1,000 engine RPM
	Oil Pressure - Minimum - Hot	124 kPa at 2,000 engine RPM	18 psig at 2,000 engine RPM
		165 kPa at 4,000 engine RPM	24 psig at 4,000 engine RPM
Oil Pan
	Front Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Rear Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting Surface	0.0-0.25 mm	0.0-0.01 in
Piston Rings
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production	0.23-0.44 mm	0.009-0.017 in
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Service	0.23-0.5 mm	0.009-0.0196 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production	0.44-0.7 mm	0.017-0.027 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service	0.44-0.76 mm	0.0173-0.03 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production	0.18-0.75 mm	0.007-0.029 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service	0.18-0.81 mm	0.007-0.032 in
	Piston Ring to Groove Clearance - First Compression Ring - Production	0.04-0.085 mm	0.00157-0.00335 in
	Piston Ring to Groove Clearance - First Compression Ring - Service	0.04-0.085 mm	0.00157-0.00335 in
	Piston Ring to Groove Clearance - Second Compression Ring - Production	0.04-0.078 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - Second Compression Ring - Service	0.04-0.078 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - Oil Control Ring - Production	0.012-0.2 mm	0.0005-0.0078 in
	Piston Ring to Groove Clearance - Oil Control Ring - Service	0.012-0.2 mm	0.0005-0.0078 in
Pistons and Pins
	Piston - Piston Diameter - Measured Over Skirt Coating	96.002-96.036 mm	3.779-3.78 in
	Piston - Piston to Bore Clearance - Production	0.036 to 0.016 mm	0.0014 to 0.0006 in
	Piston - Piston to Bore Clearance - Service Limit with Skirt Coating Worn Off	0.071 mm	0.0028 in
	Pin - Piston Pin Fit in Connecting Rod Bore	0.02-0.043 mm - interference	0.00078-0.00169 in - interference
	Pin - Piston Pin Clearance to Piston Pin Bore - Production	0.007-0.02 mm	0.00027-0.00078 in
	Pin - Piston Pin Clearance to Piston Pin Bore - Service	0.007-0.021 mm	0.00027-0.00082 in
	Pin - Piston Pin Diameter	23.997-24.0 mm	0.9447-0.9448 in
Valve System
	Valves - Valve Face Angle	45 degrees
	Valves - Valve Face Width	1.25 mm	0.05 in
	Valves - Valve Lash	Net Lash - No Adjustment
	Valves - Valve Lift - Intake	11.6 mm	0.457 in
	Valves - Valve Lift - Exhaust	11.85 mm	0.466 in
	Valves - Valve Seat Angle	46 degrees
	Valves - Valve Seat Runout	0.05 mm	0.002 in
	Valves - Valve Seat Width - Exhaust	1.78 mm	0.07 in
	Valves - Seat Width - Intake	1.02 mm	0.04 in
	Valves - Valve Stem Diameter - Production	7.955-7.976 mm	0.313-0.314 in
	Valves - Valve Stem Diameter - Service	7.95 mm	0.313 in
	Valves - Valve Stem-to-Guide Clearance - Production - Intake	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Intake	0.093 mm	0.0037 in
	Valves - Valve Stem-to-Guide Clearance - Production - Exhaust	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Exhaust	0.093 mm	0.0037 in
	Rocker Arms - Valve Rocker Arm Ratio	1.70:1
	Valve Springs - Valve Spring Free Length	52.9 mm	2.08 in
	Valve Springs - Valve Spring Installed Height	45.75 mm	1.8 in
	Valve Springs - Valve Spring Load - Closed	340 N at 45.75 mm	76 lb at 1.8 in
	Valve Springs - Valve Spring Load - Open	980 N at 33.55 mm	220 lb at 1.32 in

ENGINE MECHANICAL SPECIFICATIONS (L59 VIN Z)

Engine Mechanical Specifications (LQ4 VIN U)

Application		Specification
Application		Metric	English
General
	Engine Type	V8
	Displacement	6.0L	364 CID
	RPO	LQ4
	VIN	U
	Bore	101.618-101.636 mm	4.0007-4.0014 in
	Stroke	92.0 mm	3.622 in
	Compression Ratio	9.41:1
	Firing Order	1-8-7-2-6-5-4-3
	Spark Plug Gap	1.524 mm	0.06 in
Block
	Camshaft Bearing Bore Diameter	55.063-55.088 mm	2.168-2.169 in
	Crankshaft Main Bearing Bore Diameter	69.871-69.889 mm	2.75-2.751 in
	Crankshaft Main Bearing Bore Out-of-Round	0.006 mm	0.0002 in
	Cylinder Bore Diameter	101.618-101.636 mm	4.0007-4.0017 in
	Cylinder Bore Taper - Thrust Side	0.018 mm	0.0007 in
	Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face	234.57-234.82 mm	9.235-9.245 in
	Cylinder Head Deck Surface Flatness - Measured within a 152.4 mm (6.0 in) Area	0.11 mm	0.004 in
	Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck	0.22 mm	0.008 in
	Valve Lifter Bore Diameter	21.417-21.443 mm	0.843-0.844 in
Camshaft
	Camshaft End Play	0.025-0.305 mm	0.001-0.012 in
	Camshaft Journal Diameter	54.99-55.04 mm	2.164-2.166 in
	Camshaft Journal Out-of-Round	0.025 mm	0.001 in
	Camshaft Lobe Lift - Exhaust	7.13 mm	0.281 in
	Camshaft Lobe Lift - Intake	6.96 mm	0.274 in
	Camshaft Runout - Measured at the Intermediate Journals	0.05 mm	0.002 in
Connecting Rod
	Connecting Rod Bearing Clearance - Production	0.023-0.065 mm	0.0009-0.0025 in
	Connecting Rod Bearing Clearance - Service	0.023-0.076 mm	0.0009-0.003 in
	Connecting Rod Bore Diameter - Bearing End	56.505-56.525 mm	2.224-2.225 in
	Connecting Rod Bore Out-of-Round - Bearing End - Production	0.006 mm	0.0002 in
	Connecting Rod Bore Out-of-Round - Bearing End - Service	0.006 mm	0.0002 in
	Connecting Rod Side Clearance	0.11-0.51 mm	0.00433-0.02 in
Crankshaft
	Connecting Rod Journal Diameter - Production	53.318-53.338 mm	2.0991-2.0999 in
	Connecting Rod Journal Diameter - Service	53.308 mm	2.0987 in
	Connecting Rod Journal Out-of-Round - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Out-of-Round - Service	0.01 mm	0.0004 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Service	0.02 mm	0.00078 in
	Crankshaft End Play	0.04-0.2 mm	0.0015-0.0078 in
	Crankshaft Main Bearing Clearance - Production	0.02-0.052 mm	0.0008-0.0021 in
	Crankshaft Main Bearing Clearance - Service	0.02-0.065 mm	0.0008-0.0025 in
	Crankshaft Main Journal Diameter - Production	64.993-65.007 mm	2.558-2.559 in
	Crankshaft Main Journal Diameter - Service	64.993 mm	2.558 in
	Crankshaft Main Journal Out-of-Round - Production	0.003 mm	0.000118 in
	Crankshaft Main Journal Out-of-Round - Service	0.008 mm	0.0003 in
	Crankshaft Main Journal Taper - Production	0.01 mm	0.0004 in
	Crankshaft Main Journal Taper - Service	0.02 mm	0.00078 in
	Crankshaft Rear Flange Runout	0.05 mm	0.002 in
	Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter	0.7 mm	0.028 in
	Crankshaft Thrust Surface - Production	26.14-26.22 mm	1.029-1.0315 in
	Crankshaft Thrust Surface - Service	26.22 mm	1.0315 in
	Crankshaft Thrust Surface Runout	0.025 mm	0.001 in
Cylinder Head
	Cylinder Head Height/Thickness - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface	120.2 mm	4.732 in
	Surface Flatness - Block Deck - Measured Within a 152.4 mm (6.0 in) Area	0.08 mm	0.003 in
	Surface Flatness - Block Deck - Measuring the Overall Length of the Cylinder Head	0.1 mm	0.004 in
	Surface Flatness - Exhaust Manifold Deck	0.13 mm	0.005 in
	Surface Flatness - Intake Manifold Deck	0.08 mm	0.0031 in
	Valve Guide Installed Height - Measured from the Spring Seat Surface to the Top of the Guide	17.32 mm	0.682 in
Intake Manifold
	Surface Flatness - Measured at Gasket Sealing Surfaces and Measured Within a 200 mm (7.87 in) Area that Includes Two Runner Port Openings	0.3 mm	0.118 in
Lubrication System
	Oil Capacity - with Filter	5.68 Liters	6.0 Quarts
	Oil Capacity - without Filter	4.73 Liters	5.0 Quarts
		41 kPa at 1,000 engine RPM	6 psig at 1,000 engine RPM
	Oil Pressure - Minimum - Hot	124 kPa at 2,000 engine RPM	18 psig at 2,000 engine RPM
		165 kPa at 4,000 engine RPM	24 psig at 4,000 engine RPM
Oil Pan
	Front Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Rear Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting Surface	0.0-0.25 mm	0.0-0.01 in
Piston Rings
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production	0.31-0.52 mm	0.012-0.02 in
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Service	0.31-0.59 mm	0.0122-0.023 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production	0.51-0.77 mm	0.02-0.03 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service	0.51-0.84 mm	0.02-0.033 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production	0.31-0.87 mm	0.0122-0.034 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service	0.31-0.94 mm	0.0122-0.037 in
	Piston Ring to Groove Clearance - First Compression Ring - Production	0.04-0.08 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - First Compression Ring - Service	0.04-0.08 mm	0.00157-0.0031 in
	Piston Ring to Groove Clearance - Second Compression Ring - Production	0.039-0.079 mm	0.0015-0.0031 in
	Piston Ring to Groove Clearance - Second Compression Ring - Service	0.039-0.079 mm	0.0015-0.0031 in
	Piston Ring to Groove Clearance - Oil Control Ring - Production	0.015-0.199 mm	0.0006-0.0078 in
	Piston Ring to Groove Clearance - Oil Control Ring - Service	0.015-0.199 mm	0.0006-0.0078 in
Pistons and Pins
	Piston - Piston Diameter - Measured Over Skirt Coating	101.606-101.640 mm	4.0002-4.0016 in
	Piston - Piston to Bore Clearance - Production	0.022-0.03 mm - interference	0.0009-0.0012 in - interference
	Piston - Piston to Bore Clearance - Service Limit with Skirt Coating Worn Off	0.07 mm	0.0028 in
	Pin - Piston Pin Fit in Connecting Rod Bore	0.02-0.043 mm - interference	0.00078-0.00169 in - interference
	Pin - Piston Pin Clearance to Piston Pin Bore - Production	0.011-0.018 mm	0.0004-0.0007 in
	Pin - Piston Pin Clearance to Piston Pin Bore - Service	0.011-0.02 mm	0.0004-0.0008 in
	Pin - Piston Pin Diameter	23.997-24.0 mm	0.9447-0.9448 in
Valve System
	Valves - Valve Face Angle	45 degrees
	Valves - Valve Face Width	1.25 mm	0.05 in
	Valves - Valve Lash	Net Lash - No Adjustment
	Valves - Valve Lift - Intake	11.79 mm	0.464 in
	Valves - Valve Lift - Exhaust	12.16 mm	0.479 in
	Valves - Valve Seat Angle	46 degrees
	Valves - Valve Seat Runout	0.05 mm	0.002 in
	Valves - Valve Seat Width - Exhaust	1.78 mm	0.07 in
	Valves - Valve Seat Width - Intake	1.02 mm	0.04 in
	Valves - Valve Stem Diameter - Production	7.955-7.976 mm	0.313-0.314 in
	Valves - Valve Stem Diameter - Service	7.95 mm	0.313 in
	Valves - Valve Stem-to-Guide Clearance - Production - Intake	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Intake	0.093 mm	0.0037 in
	Valves - Valve Stem-to-Guide Clearance - Production - Exhaust	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Exhaust	0.093 mm	0.0037 in
	Rocker Arms - Valve Rocker Arm Ratio	1.70:1
	Valve Springs - Valve Spring Free Length	52.9 mm	2.08 in
	Valve Springs - Valve Spring Installed Height	45.75 mm	1.8 in
	Valve Springs - Valve Spring Load - Closed	340 N at 45.75 mm	76 lb at 1.8 in
	Valve Springs - Valve Spring Load - Open	980 N at 33.55 mm	220 lb at 1.32 in

ENGINE MECHANICAL SPECIFICATIONS (LQ4 VIN U)

Engine Mechanical Specifications (LQ9 VIN N)

Application		Specification
Application		Metric	English
General
	Engine Type	V8
	Displacement	6.0L	364 CID
	RPO	LQ9
	VIN	N
	Bore	101.618-101.636 mm	4.0007-4.0014 in
	Stroke	92.0 mm	3.622 in
	Compression Ratio	10.08:1
	Firing Order	1-8-7-2-6-5-4-3
	Spark Plug Gap	1.524 mm	0.06 in
Block
	Camshaft Bearing Bore Diameter	55.063-55.088 mm	2.168-2.169 in
	Crankshaft Main Bearing Bore Diameter	69.871-69.889 mm	2.75-2.751 in
	Crankshaft Main Bearing Bore Out-of-Round	0.006 mm	0.0002 in
	Cylinder Bore Diameter	101.618-101.636 mm	4.0007-4.0017 in
	Cylinder Bore Taper - Thrust Side	0.018 mm	0.0007 in
	Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face	234.57-234.82 mm	9.235-9.245 in
	Cylinder Head Deck Surface Flatness - Measured within a 152.4 mm (6.0 in) Area	0.11 mm	0.004 in
	Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck	0.22 mm	0.008 in
	Valve Lifter Bore Diameter	21.417-21.443 mm	0.843-0.844 in
Camshaft
	Camshaft End Play	0.025-0.305 mm	0.001-0.012 in
	Camshaft Journal Diameter	54.99-55.04 mm	2.164-2.166 in
	Camshaft Journal Out-of-Round	0.025 mm	0.001 in
	Camshaft Lobe Lift - Exhaust	7.13 mm	0.281 in
	Camshaft Lobe Lift - Intake	6.96 mm	0.274 in
	Camshaft Runout - Measured at the Intermediate Journals	0.05 mm	0.002 in
Connecting Rod
	Connecting Rod Bearing Clearance - Production	0.023-0.065 mm	0.0009-0.0025 in
	Connecting Rod Bearing Clearance - Service	0.023-0.076 mm	0.0009-0.003 in
	Connecting Rod Bore Diameter - Bearing End	56.505-56.525 mm	2.224-2.225 in
	Connecting Rod Bore Out-of-Round - Bearing End - Production	0.006 mm	0.00023 in
	Connecting Rod Bore Out-of-Round - Bearing End - Service	0.004-0.008 mm	0.00015-0.0003 in
	Connecting Rod Side Clearance	0.11-0.51 mm	0.00433-0.02 in
Crankshaft
	Connecting Rod Journal Diameter - Production	53.318-53.338 mm	2.0991-2.0999 in
	Connecting Rod Journal Diameter - Service	53.308 mm	2.0987 in
	Connecting Rod Journal Out-of-Round - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Out-of-Round - Service	0.01 mm	0.0004 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Service	0.02 mm	0.00078 in
	Crankshaft End Play	0.04-0.2 mm	0.0015-0.0078 in
	Crankshaft Main Bearing Clearance - Production	0.02-0.052 mm	0.0008-0.0021 in
	Crankshaft Main Bearing Clearance - Service	0.02-0.065 mm	0.0008-0.0025 in
	Crankshaft Main Journal Diameter - Production	64.993-65.007 mm	2.558-2.559 in
	Crankshaft Main Journal Diameter - Service	64.993 mm	2.558 in
	Crankshaft Main Journal Out-of-Round - Production	0.003 mm	0.000118 in
	Crankshaft Main Journal Out-of-Round - Service	0.008 mm	0.0003 in
	Crankshaft Main Journal Taper - Production	0.01 mm	0.0004 in
	Crankshaft Main Journal Taper - Service	0.02 mm	0.00078 in
	Crankshaft Rear Flange Runout	0.05 mm	0.002 in
	Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter	0.7 mm	0.028 in
	Crankshaft Thrust Surface - Production	26.14-26.22 mm	1.029-1.0315 in
	Crankshaft Thrust Surface - Service	26.22 mm	1.0315 in
	Crankshaft Thrust Surface Runout	0.025 mm	0.001 in
Cylinder Head
	Cylinder Head Height/Thickness - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface	120.2 mm	4.732 in
	Surface Flatness - Block Deck - Measured Within a 152.4 mm (6.0 in) Area	0.08 mm	0.003 in
	Surface Flatness - Block Deck - Measuring the Overall Length of the Cylinder Head	0.1 mm	0.004 in
	Surface Flatness - Exhaust Manifold Deck	0.13 mm	0.005 in
	Surface Flatness - Intake Manifold Deck	0.08 mm	0.0031 in
	Valve Guide Installed Height - Measured from the Spring Seat Surface to the Top of the Guide	17.32 mm	0.682 in
Intake Manifold
	Surface Flatness - Measured at Gasket Sealing Surfaces and Measured Within a 200 mm (7.87 in) Area that Includes Two Runner Port Openings	0.3 mm	0.118 in
Lubrication System
	Oil Capacity - with Filter	5.68 Liters	6.0 Quarts
	Oil Capacity - without Filter	4.73 Liters	5.0 Quarts
		41 kPa at 1,000 engine RPM	6 psig at 1,000 engine RPM
	Oil Pressure - Minimum - Hot	124 kPa at 2,000 engine RPM	18 psig at 2,000 engine RPM
		165 kPa at 4,000 engine RPM	24 psig at 4,000 engine RPM
Oil Pan
	Front Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Rear Cover Alignment - at Oil Pan Surface	0.0-0.5 mm	0.0-0.02 in
	Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting Surface	0.0-0.25 mm	0.0-0.01 in
Piston Rings
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production	0.31-0.52 mm	0.012-0.02 in
	Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Service	0.31-0.59 mm	0.0122-0.023 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production	0.51-0.77 mm	0.02-0.03 in
	Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service	0.51-0.84 mm	0.02-0.033 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production	0.31-0.87 mm	0.0122-0.034 in
	Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service	0.31-0.94 mm	0.0122-0.037 in
	Piston Ring to Groove Clearance - First Compression Ring - Production	0.035-0.08 mm	0.0014-0.0031 in
	Piston Ring to Groove Clearance - First Compression Ring - Service	0.035-0.08 mm	0.0014-0.0031 in
	Piston Ring to Groove Clearance - Second Compression Ring - Production	0.034-0.079 mm	0.0013-0.003 in
	Piston Ring to Groove Clearance - Second Compression Ring - Service	0.034-0.079 mm	0.0013-0.003 in
	Piston Ring to Groove Clearance - Oil Control Ring - Production	0.012-0.2 mm	0.00047-0.00078 in
	Piston Ring to Groove Clearance - Oil Control Ring - Service	0.012-0.2 mm	0.00047-0.00078 in
Pistons and Pins
	Piston - Piston Diameter - Measured Over Coating - at Size Point	101.611-101.642 mm	4.0-4.001 in
	Piston - Piston to Bore Clearance - Production	0.022 to 0.030 mm	0.0009 to 0.0012 in
	Piston - Piston to Bore Clearance - With Skirt Coating Worn Off - Service	0.024-0.08 mm	0.00094-0.0031 in
	Pin - Piston Pin Fit in Connecting Rod Bore - Production	0.007-0.02 mm	0.00027-0.00078 in
	Pin - Piston Pin Fit in Connecting Rod Bore - Service	0.007-0.022 mm	0.00027-0.00086 in
	Pin - Piston Pin Clearance to Piston Pin Bore - Production	0.002-0.01 mm	0.00008-0.0004 in
	Pin - Piston Pin Clearance to Piston Pin Bore - Service	0.002-0.015 mm	0.0008-0.0006 in
	Pin - Piston Pin Diameter	23.952-23.955 mm	0.943-0.943 in
Valve System
	Valves - Valve Face Angle	45 degrees
	Valves - Valve Face Width	1.25 mm	0.05 in
	Valves - Valve Lash	Net Lash - No Adjustment
	Valves - Valve Lift - Intake	11.79 mm	0.464 in
	Valves - Valve Lift - Exhaust	12.16 mm	0.479 in
	Valves - Valve Seat Angle	46 degrees
	Valves - Valve Seat Runout	0.05 mm	0.002 in
	Valves - Valve Seat Width - Exhaust	1.78 mm	0.07 in
	Valves - Valve Seat Width - Intake	1.02 mm	0.04 in
	Valves - Valve Stem Diameter - Production	7.955-7.976 mm	0.313-0.314 in
	Valves - Valve Stem Diameter - Service	7.95 mm	0.313 in
	Valves - Valve Stem-to-Guide Clearance - Production - Intake	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Intake	0.093 mm	0.0037 in
	Valves - Valve Stem-to-Guide Clearance - Production - Exhaust	0.025-0.066 mm	0.001-0.0026 in
	Valves - Valve Stem-to-Guide Clearance - Service - Exhaust	0.093 mm	0.0037 in
	Rocker Arms - Valve Rocker Arm Ratio	1.70:1
	Valve Springs - Valve Spring Free Length	52.9 mm	2.08 in
	Valve Springs - Valve Spring Installed Height	45.75 mm	1.8 in
	Valve Springs - Valve Spring Load - Closed	340 N at 45.75 mm	76 lb at 1.8 in
	Valve Springs - Valve Spring Load - Open	980 N at 33.55 mm	220 lb at 1.32 in

ENGINE MECHANICAL SPECIFICATIONS (LQ9 VIN N)

Scheme 862

Scheme 862: Sealers, Adhesives, and Lubricants

Scheme 863

Scheme 863: Thread Repair Specifications

Scheme 864

Scheme 865

Scheme 866

Scheme 867

Scheme 868

Scheme 869

Scheme 870

Scheme 871

Scheme 872

Scheme 873

Scheme 874

Scheme 875

Scheme 876

Scheme 877

Scheme 878

Scheme 879

Scheme 880

Scheme 881

Scheme 882

Scheme 883

Scheme 884

Scheme 885

Scheme 886

Scheme 886: Disassembled Views

Scheme 887

Scheme 888

Scheme 889

Scheme 890

Scheme 891

Scheme 892

Scheme 892: Engine Identification

The vehicle identification number (VIN) is located on the left side rear of the engine block (1) and is typically a nine digit number stamped or laser-etched onto the engine at the vehicle assembly plant.

The first digit identifies the division.
The second digit identifies the model year.
The third digit identifies the assembly plant.
The fourth through ninth digits are the last six digits of the VIN.

Torque Values and/or Fastener Tightening Strategies

All fasteners and threaded holes on the 4.8/5.3/6.0 liter engines utilize metric threads.
Cylinder head, connecting rod, crankshaft balancer, and main bearing cap bolts now apply a torque angle strategy.
Certain fasteners should not be reused. Bolts, studs, or other fasteners that must be replaced will be called out in the specific service procedure.
Refer to «Fastener Tightening Specifications»(ref-188991-S26589401632005091300000) and «Thread Repair Specifications»(ref-188991-S41839584782005091300000) .

Changed Engine Specifications

Engine specification tables content and format have been commonized.

See also:
• STRATEGY BASED DIAGNOSIS
• JACKING AND LIFTING

Engine Mechanical - 4.8L, 5.3L & 6.0L: Specifications GMC Sierra 1500 HD