Engine Mechanical - 6.6L - Introduction: Specifications — Chevrolet Silverado 1500 (2000-2012)

Fastener Tightening Specifications

Application	Specification
Application	Metric	English
A/C Compressor Bolt	50 N.m	37 lb ft
Air Cleaner Outlet Duct Clamp	8 N.m	71 lb in
Air Conditioning Compressor/Power Steering Pump Bracket Bolt	46 N.m	34 lb ft
Air Inlet Tube Nut	25 N.m	18 lb ft
Battery Cable Bracket Bolt	12 N.m	106 lb in
Battery Cable Bracket Nut	8 N.m	71 lb in
Bypass Pipe Bolt	25 N.m	18 lb ft
Camshaft Gear Bolt	234 N.m	173 lb ft
Camshaft Position Sensor Bolt	10 N.m	89 lb in
Camshaft Position Sensor Exciter Ring Bolt	9 N.m	80 lb in
Camshaft Thrust Plate Bolt	22 N.m	16 lb ft
Charged Air Cooler Bolt	21 N.m	15 lb ft
Charged Air Cooler Clamp	8 N.m	71 lb in
Connecting Rod Cap Bolt - Angular Tightening Method	1st Step 64 N.m	1st Step 47 lb ft
	2nd Step 30 degrees	2nd Step 30 degrees
	3rd Step 30 degrees	3rd Step 30 degrees
Coolant Pipe Bolt and Nut	25 N.m	18 lb ft
Coolant Tube to Water Pump Nut	25 N.m	18 lb ft
Cooling Fan Pulley	41 N.m	30 lb ft
Crankshaft Balancer Bolt	1st Step 100 N.m	1st Step 74 lb ft
Crankshaft Balancer Bolt	2nd Step 90 degrees	2nd Step 90 degrees
Crankshaft Bearing Cap Bolt	1st Step 98 N.m	1st Step 72 lb ft
	2nd Step 132 N.m	2nd Step 97 lb ft
	3rd Step 30 degrees	3rd Step 30 degrees
Crankshaft Bearing Cap Bolt - Angular Tightening Method	1st Step 100 N.m	1st Step 74 lb ft
Crankshaft Bearing Cap Bolt - Angular Tightening Method	2nd Step 90 degrees	2nd Step 90 degrees
Crankshaft Bearing Cap Side Bolt	70 N.m	52 lb ft
Crankshaft Position Sensor Bolt	10 N.m	89 lb in
Crankshaft Position Sensor Spacer Bolt	10 N.m	89 lb in
Crossmember Bolt	100 N.m	74 lb ft
Cylinder Head M12 Bolt - Angular Tightening Method	1st Step 50 N.m	1st Step 37 lb ft
	2nd Step 80 N.m	2nd Step 59 lb ft
	3rd Step 60 degrees
	4th Step 60 degrees
Cylinder Head M8 Bolt	25 N.m	18 lb ft
Drive Belt Tensioner Pulley Bolt	50 N.m	37 lb ft
EGR Bracket	25 N.m	18 lb ft
EGR Bracket Bolt	25 N.m	18 lb ft
EGR Bracket to Cooler Bolt	25 N.m	18 lb ft
Electrical Harness Bracket Bolt	10 N.m	89 lb in
Engine Block Coolant Plug	18 N.m	13 lb ft
Engine Block Ground Bolt	34 N.m	25 lb ft
Engine Mount Through Bolt to Frame	75 N.m	55 lb ft
Engine Mount to Block Bolts	58 N.m	43 lb ft
Engine Mount to Frame Bolt	65 N.m	48 lb ft
Engine Shield Bolt	20 N.m	15 lb ft
Exhaust Heat Shield Nut	10 N.m	89 lb in
Exhaust Manifold Bolt/Nut	38 N.m	28 lb ft
Exhaust Manifold Heat Shield Bolts	10 N.m	89 lb in
Exhaust Outlet Heat Shield Bolts	10 N.m	89 lb in
Exhaust Pipe Bracket Nut	53 N.m	39 lb ft
Exhaust Pipe Clamp	53 N.m	39 lb ft
Exhaust Pipe Heat Shield Bolts	10 N.m	89 lb in
Fan Pulley Bracket Bolt	50 N.m	37 lb ft
Flywheel Bolt - Angular Tightening Method	1st Step 79 N.m	1st Step 58 lb ft
	2nd Step 60 degrees	2nd Step 60 degrees
	3rd Step 60 degrees	3rd Step 60 degrees
Flywheel Housing Bolt	80 N.m	60 lb ft
Flywheel Housing to Upper Oil Pan Bolt	50 N.m	37 lb ft
Front Engine Cover Bolt	25 N.m	18 lb ft
Fuel Filter Bracket Bolt	30 N.m	22 lb ft
Fuel Injection Pipe Nut	41 N.m	30 lb ft
Fuel Injector Bracket Bolt	30 N.m	22 lb ft
Fuel Inlet Pipe Bracket Bolt	21 N.m	15 lb ft
Fuel Injection Pump Assembly to Cylinder Block Bolt	25 N.m	18 lb ft
Fuel Injection Pump to Bracket Bolt	28 N.m	20 lb ft
Fuel Injection Pump Drive Gear Nut	70 N.m	52 lb ft
Fuel Line Bracket Nut	21 N.m	15 lb ft
Fuel Temperature Sensor	22 N.m	16 lb ft
Fuel Pipes Bracket Bolt	25 N.m	18 lb ft
Fuel Rail Assembly Bolt	25 N.m	18 lb ft
Fuel Rail Balance Pipe Bolt	21 N.m	15 lb ft
Generator Bracket Bolt and Nut	50 N.m	37 lb ft
Generator Positive Cable Nut	9 N.m	80 lb in
Glow Plug	18 N.m	13 lb ft
Glow Plug Controller Bolt	10 N.m	89 lb in
Glow Plug Harness Bracket Bolt	10 N.m	89 lb in
Glow Plug Nut	2 N.m	18 lb in
Glow Plug Power Feed Nut	15 N.m	11 lb ft
Glow Plug Relay Assembly Bolt	10 N.m	89 lb in
Heater Outlet Pipe Bolt	25 N.m	18 lb ft
Heater Pipe Bolt	25 N.m	18 lb ft
Hood Hinge Bolt	25 N.m	18 lb ft
Idle Pulley Bolt	50 N.m	37 lb ft
Injector Bracket Bolt	23 N.m	16 lb ft
Intake Manifold Bolts/Nuts	25 N.m	18 lb ft
Oil Cooler Adapter Bolts	25 N.m	18 lb ft
Oil Cooler Adapter Nuts	25 N.m	18 lb ft
Oil Cooler Assembly Bolts	25 N.m	18 lb ft
Oil Cooler Adapter Stud	10 N.m	89 lb in
Oil Drain Plug	84 N.m	62 lb ft
Oil Fill Tube Bolt	25 N.m	18 lb ft
Oil Filter	24 N.m	18 lb ft
Oil Gallery Plugs	53 N.m	39 lb ft
Oil Level Indicator Tube Bolt	21 N.m	15 lb ft
Oil Level Sensor Bolt	10 N.m	89 lb in
Oil Level Sensor Harness Bolt	40 N.m	29 lb ft
Oil Pan Bolts/Nuts - Lower	10 N.m	89 lb in
Oil Pan Bolt - Upper	20 N.m	15 lb ft
Oil Pan Skid Plate Bolt	20 N.m	15 lb ft
Oil Pressure Sensor Unit	41 N.m	30 lb ft
Oil Pressure Relief Valve	39 N.m	29 lb ft
Oil Pump Bolt	21 N.m	15 lb ft
Oil Pump Driven Gear Nut	100 N.m	74 lb ft
Oil Pump Gear Cover Bolt	21 N.m	15 lb ft
Oil Pump Pipe and Screen Assembly Bolts and Nuts	25 N.m	18 lb ft
Piston Cooling Nozzle Eye Bolt	21 N.m	15 lb ft
Positive Cable Junction Block Bracket to Power Steering Pump Bolt	9 N.m	80 lb in
Positive Crankcase Ventilation Cover Screws	4 N.m	35 lb in
Positive Crankcase Ventilation Oil Separator Bracket Nut	25 N.m	18 lb ft
Power Steering Pump Bracket Bolt	50 N.m	37 lb ft
Power Steering Pump Bolt	50 N.m	37 lb ft
Rocker Arm Shaft Bracket Bolt	41 N.m	30 lb ft
Starter Motor Bolt	78 N.m	58 lb ft
Transmission Fill Tube Nut	18 N.m	13 lb ft
Thermostat Housing Bolts/Nuts	25 N.m	18 lb ft
Thermostat Cover Bolt	25 N.m	18 lb ft
Torque Converter Bolt	60 N.m	44 lb ft
Transmission Oil Cooler Clip Nut	9 N.m	80 lb in
Turbocharger Bolt	108 N.m	80 lb ft
Turbocharger Coolant Outlet Pipe Bracket Nut	10 N.m	89 lb in
Turbocharger Heat Shield Bolts	10 N.m	89 lb in
Turbocharger Oil Return Pipe Stud	10 N.m	89 lb in
Turbocharger Oil Supply Hose Eye Bolt	26 N.m	19 lb ft
Turbocharger Oil Return Pipe Bolts/Nuts	25 N.m	18 lb ft
Upper Oil Pan to Flywheel Housing Bolts	20 N.m	15 lb ft
Valve Adjusting Nut	22 N.m	16 lb ft
Valve Lifter Hold-down Bracket Bolt	11 N.m	97 lb in
Valve Rocker Arm Cover Bolt - Lower	10 N.m	89 lb in
Valve Rocker Arm Cover Bolt - Upper	8 N.m (Two Times)	71 lb in (Two Times)
Water Outlet Bolts	25 N.m	18 lb ft
Water Pump Bolt	25 N.m	18 lb ft
Water Pump Inlet Pipe Bolts	25 N.m	18 lb ft

Fastener Tightening Specifications

Engine Mechanical Specifications

Application	Specification
Application	Metric	English
General
Engine Type	90 degree V-8
Displacement	6.6 Liter	402 cu in
RPO	LLY/LBZ
Bore	103 mm	4.0551 in
Stroke	99 mm	3.8976 in
Compression Ratio	17.5:1
Engine Compression Test - Minimum	2069 KPa	300 psi
Idle Speed	680 RPM
Firing Order	1-2-7-8-4-5-6-3
Block
Cylinder Bore Diameter - Service Limits	103.11 mm	4.0594 in
Cylinder Bore Diameter - Production Value	103.0-103.014 mm	4.0551-4.0557 in
Cylinder Bore Out-of-Round - Production Value	0.015 mm	0.0006 in
Cylinder Bore Taper - Production Value	0.015 mm	0.0006 in
Camshaft
Camshaft Bearing Inside Diameter - Service Limit	61.07 mm	2.4043 in
Camshaft Bearing Inside Diameter - Production Value	61.00-61.03 mm	2.4016-2.4028 in
Camshaft End Play - Service Limit	0.2 mm	0.0079 in
Camshaft Journal Diameter - Service Limit	60.92 mm	2.3984 in
Camshaft Journal Diameter - Production Value	60.932-60.962 mm	2.3990-2.4001 in
Camshaft Lobe Lift - Exhaust - Production Value	5.907 mm	0.2326 in
Camshaft Lobe Lift - Intake - Production Value	7.273 mm	0.2863 in
Camshaft Runout - Service Limit	0.05 mm	0.0020 in
Cooling System
Capacity @ Engine RPM	270 L/min @ 3172 RPM
Thermostat Full Open Temperature	110 degrees C	230 degrees F
Turbocharger Coolant Bypass Valve	60 degrees C	140 degrees F
Connecting Rod
Connecting Rod Bearing Clearance - Service Limit	0.10 mm	0.0039 in
Connecting Rod Bearing Clearance - Production Value	0.036-0.077 mm	0.0014-0.0030 in
Connecting Rod Bore Diameter - Bearing End - Production Value	62.958-62.979 mm	2.4789-2.4795 in
Connecting Rod Bore Diameter - Pin End - Service Limit	34.53 mm	1.3594 in
Connecting Rod Bore Diameter - Pin End - Production Value	34.512-34.522 mm	1.3587-1.3591 in
Connecting Rod Length	163.0 mm	6.42 in
Connecting Rod Side Clearance - Service Limit	0.54 mm	0.0213 in
Connecting Rod Side Clearance - Production Value	0.31-0.49 mm	0.0122-0.0193 in
Crankshaft
Connecting Rod Journal Diameter - Service Limit	62.88 mm	2.4756 in
Connecting Rod Journal Diameter - Production Value	62.902-62.922 mm	2.4764-2.4772 in
Crankshaft End Play - Service Limit	0.54 mm	0.0213 in
Crankshaft End Play - Production Value	0.04-0.205 mm	0.0016-0.0081 in
Crankshaft Main Bearing Clearance - Service Limit	0.14 mm	0.0055 in
Crankshaft Main Bearing Clearance - Production Value	0.039-0.070 mm	0.0015-0.0028 in
Crankshaft Main Journal Diameter - Service Limit	79.89 mm	3.1453 in
Crankshaft Main Journal Diameter - Production Value	79.905-79.925 mm	3.1459-3.1466 in
Crankshaft Runout - Service Limit	0.44 mm	0.0173 in
Crankshaft Runout - Production Value	0.05 mm	0.0020 in
Cylinder Head
Surface Flatness - Block Deck - Service Limit	0.2 mm	0.0079 in
Surface Flatness - Block Deck - Production Value	0.075 mm	0.0030 in
Surface Flatness - Exhaust Manifold Deck - Production Value	0.1 mm	0.0039 in
Surface Flatness - Intake Manifold Deck - Production Value	0.1 mm	0.0039 in
Exhaust Manifold
Surface Flatness- Production Value	0.3 mm	0.0118 in
Intake Manifold
Surface Flatness - Production Value	0.3 mm	0.0118 in
Lubrication System
Oil Capacity - with Filter	10 qt	9.5 L
Oil Capacity - without Filter	9.2 qt	8.7 L
Oil Pressure - Minimum- Hot - at idle	98 KPa	14 psi
Oil Pressure - Minimum - 1800 RPM	294 KPa	42 psi
Oil Relief Valve Opening Pressure	441 KPa	64 psi
Piston Cooling Jet Valve Opening Pressure	196 KPa	29 psi
Oil Pump
Gear Shaft Outside Diameter - Drive - Service Limit	19.86 mm	0.7819 in
Gear Shaft Outside Diameter - Drive - Production Value	19.947-19.960 mm	0.7853-0.7858 in
Gear Shaft Outside Diameter - Driven - Service Limit	19.86 mm	0.7819 in
Gear Shaft Outside Diameter - Driven - Production Value	19.947-19.960 mm	0.7853-0.7858 in
Gear Shaft-to-Bushing - Service Limit Clearance	0.14 mm	0.0055 in
Gear-to-Cover Clearance - Drive/Driven - Service Limit	0.109 mm	0.0043 in
Gear-to-Cover Clearance - Drive/Driven - Production Value	0.064-0.109 mm	0.0025-0.0043 in
Gear-to-Housing Clearance - Drive/Driven - Service Limit	0.22 mm	0.0087 in
Gear-to-Housing Clearance - Drive/Driven - Production Value	0.125-0.221 mm	0.0049-0.0087 in
Piston Rings
Piston Ring End Gap-First Compression Ring - Service Limit	1.37 mm	0.0539 in
Piston Ring End Gap-First Compression Ring - Production Value	0.3-0.45 mm	0.0118-0.0177 in
Piston Ring End Gap-Second Compression Ring - Service Limit	1.35 mm	0.0531 in
Piston Ring End Gap-Second Compression Ring - Production Value	0.50-0.65 mm	0.0197-0.0256 in
Piston Ring End Gap-Oil Control Ring - Service Limit	1.20 mm	0.0472 in
Piston Ring End Gap-Oil Control Ring - Production Value	0.15-0.35 mm	0.0059-0.0138 in
Piston Ring to Groove Clearance-First Compression Ring - Service Limit	0.26 mm	0.0102 in
Piston Ring to Groove Clearance-First Compression Ring - Production Value	0.08-0.17 mm	0.0030-0.0067 in
Piston Ring to Groove Clearance-Second Compression Ring - Service Limit	0.10 mm	0.0039 in
Piston Ring to Groove Clearance-Second Compression Ring - Production Value	0.01-0.03 mm	0.0004-0.0012 in
Piston Ring to Groove Clearance-Oil Control Ring - Service Limit	0.12 mm	0.0047 in
Piston Ring to Groove Clearance-Oil Control Ring - Production Value	0.01-0.03 mm	0.0004-0.0012 in
Pistons and Pins
Piston-Piston Diameter	102.948-102.960 mm	4.0531-4.0535 in
Piston-Piston Pin Bore Diameter	34.504-34.512 mm	1.3584-1.3587 in
Pin-Piston Pin Clearance to Piston Pin Bore - Service Limit	0.017 mm	0.0007 in
Pin-Piston Pin Clearance to Piston Pin Bore - Production Value	0.004-0.017 mm	0.0002-0.0007 in
Pin-Piston Pin Diameter - Service Limit	34.45 mm	1.3563 in
Pin-Piston Pin Diameter - Production Value	34.495-34.5 mm	1.3581-1.3583 in
Starter
Rated Output	3.5 KW
Valve System
Valves-Valve Face Angle - Production Value	45 degrees
Valves-Valve Face Width - Service Limit	2.5 mm	0.0984 in
Valves-Valve Face Width - Production Value	2.1 mm	0.0827 in
Valves-Valve Head Diameter - Exhaust	31.0 mm	1.22 in
Valves-Valve Head Diameter - Intake	33.0 mm	1.30 in
Valves-Valve Seat Angle	45 degrees
Valves-Valve Stem Diameter	7.0 mm	0.28 in
Valves-Valve Stem Oil Seal Installed Height	6.05 mm	0.2382 in
Valves-Valve Stem-to-Guide Clearance - Service Limit	0.20 mm	0.0079 in
Valves-Valve Stem-to-Guide Clearance - Exhaust - Production Value	0.038-0.071 mm	0.0015-0.0028 in
Valves-Valve Stem-to-Guide Clearance - Intake - Production Value	0.030-0.063 mm	0.0012-0.0025 in
Valves-Valve Stem-to-Guide Clearance	0.20 mm	0.0079 in
Valve Lifters/Push Rods-Push Rod Straightness	0.8 mm	0.0315 in
Rocker Arms-Valve Rocker Arm Bore Diameter	22.010-22.035 mm	0.8665-0.8675 in
Rocker Arms-Valve Rocker Arm Bore-to-Shaft Clearance - Service Limit	0.20 mm	0.0079 in
Rocker Arms-Valve Rocker Arm Bore-to-Shaft Clearance - Production Value	0.010-0.056 mm	0.0004-0.0022 in
Rocker Arms-Valve Rocker Arm Ratio - Exhaust	1.69:1
Rocker Arms-Valve Rocker Arm Ratio - Intake	1.36:1
Rocker Arms-Valve Rocker Arm Shaft Diameter - Service Limit	21.85 mm	0.8602 in
Rocker Arms-Valve Rocker Arm Shaft Diameter - Production Value	21.979-22.000 mm	0.8653-0.8661 in
Valve Springs-Valve Spring Free Length - Production Value	56.6 mm	2.2283 in
Valve Springs-Valve Spring Installed Height - Production Value	41 mm	1.6142 in
Valve Springs-Valve Spring Load - Exhaust - Service Limit	275 N at 41 mm	61.8 lb at 1.61 in
Valve Springs-Valve Spring load - Exhaust - Production Value	315-363 N at 41 mm	71-81.6 lb at 1.61 in
Valve Springs-Valve Spring Load - Intake - Service Limit	306 N at 41 mm	68.8 lb at 1.61 in
Valve Springs-Valve Spring Load - Intake - Production Value	315-363 N at 41 mm	71-81.6 lb at 1.61 in

Engine Mechanical Specifications

Connecting Rod Bearings Selection Specifications

Connecting Rod Grade (Stamped on Connecting Rod)	Use This Bearing Color	Bearing Thickness		Oil Clearance
Connecting Rod Grade (Stamped on Connecting Rod)	Use This Bearing Color	Metric (mm)	English (in)	Metric (mm)	English (in)
A	Green	2.007 - 2.013	0.0790 - 0.0793	0.037 - 0.076	0.0015 - 0.0030
B	Yellow	2.011 - 2.017	0.0792 - 0.0794	0.037 - 0.076	0.0015 - 0.0030

Connecting Rod Bearing Grade

Cylinder Head Gasket Selection Specifications

Cylinder Head Gasket Grade	Ti max (Piston Projection)		Gasket Thickness
Cylinder Head Gasket Grade	Metric (mm)	English (in)	Metric (mm)	English (in)
Grade A (No grade hole on the gasket)	Over 0.223 - less than 0.274	Over 0.0088 - less than 0.0108	0.90-1.00	0.0354-0.0394
Grade B (One grade hole on the gasket)	Over 0.274 - less than 0.325	Over 0.0108 - less than 0.0128	0.95-1.05	0.0374-0.0413
Grace C (Two grade holes on the gasket)	Over 0.325 - less than 0.376	Over 0.0128 - less than 0.0148	1.00-1.10	0.0394-0.0433

Cylinder Head Gasket Selection Specifications

Crankshaft Bearings Selection Specifications

Cylinder Block Grade	Crankshaft Journal Grade	Identification Bearing Color	Oil Clearance
Cylinder Block Grade	Crankshaft Journal Grade	Identification Bearing Color	Metric (mm)	English (in)
1	1	Black	0.041-0.068	0.0016-0.0027
1	2	Brown	0.039-0.065	0.0015-0.0026
2	1	Blue	0.043-0.070	0.0017-0.0028
2	2	Black	0.041-0.067	0.0016-0.0027

Crankshaft Bearings Selection Specifications

Valve Clearance Adjustment Specifications

Cylinder		Adjust at No 1 Compression Stroke TDC		Adjust at No 1 Exhaust Stroke TDC
Left Bank	Right Bank	Intake	Exhaust	Intake	Exhaust
	1	X	X
2			X	X
	3	X			X
4				X	X
	5	X			X
6		X			X
	7		X	X
8			X	X

Valve Clearance Adjustment Specifications

Scheme 409

Scheme 409: Cylinder Head - Exhaust View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 10 x 1.5	211	212	N/A	213	214	215	25	0.985	21	0.827

Cylinder Head - Exhaust View

Scheme 410

Scheme 410: Cylinder Head - Intake View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	21	0.827	17	0.669

Cylinder Head - Intake View

Scheme 411

Scheme 411: Cylinder Head - Top View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 6 x 1.0	201	202	N/A	203	204	205	17	0.669	13	0.512
2	M 8 x 1.25	206	207	N/A	208	209	210	26	1.024	20	0.788
3	M 10 x 1.5	211	212	N/A	213	214	215	26	1.024	20	0.788

Cylinder Head - Top View

Scheme 412

Scheme 412: Cylinder Head - Rear View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	13	0.512
2	M 10 x 1.5	211	212	N/A	213	214	216	20	0.788	16	0.630

Cylinder Head - Rear View

Scheme 413

Scheme 413: Cylinder Head - Front View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	13	0.512
2	M 10 x 1.5	211	212	N/A	213	214	216	20	0.788	16	0.630

Cylinder Head - Front View

Scheme 414

Scheme 414: Intake Manifold - Right Side View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	415	16	0.630	13	0.512
2	M 8 x 1.25	206	207	N/A	208	209	210	THRU		THRU
3	M 6 x 1.0	201	202	N/A	203	204	205	16	0.0630	12	0.472

Intake Manifold - Right Side View

Scheme 415

Scheme 415: Intake Manifold - Left Side View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	THRU		THRU
2	M 6 x 1.0	201	202	N/A	203	204	205	14	0.551	11	0.433
3	M 6 x 1.0	201	202	N/A	203	204	205	16	0.630	12	0.472

Intake Manifold - Left Side View

Scheme 416

Scheme 416: Oil Cooler

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	21	0.827	17	0.669
2	M 8 x 1.25	206	207	N/A	208	209	210	THRU		THRU

Oil Cooler

Scheme 417

Scheme 417: EGR Cooler - Rear View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	THRU		THRU

EGR Cooler - Rear View

Scheme 418

Scheme 418: EGR Cooler - Front View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	THRU		THRU

EGR Cooler - Front View

Scheme 419

Scheme 419: EGR - Top View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	THRU		THRU

EGR - Top View

Scheme 420

Scheme 420: Thermostat Housing - Top View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	21	0.827	17	0.669
2	M 8 x 1.25	206	207	N/A	208	209	210	THRU		THRU
3	NPT 3/8	2013	N/A	N/A	294	2015	2016	THRU		THRU
4	M 8 x 1.25	206	207	N/A	208	209	210	19	0.748	15	0.591

Thermostat Housing - Top View

Scheme 421

Scheme 421: AC Bracket

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 10 x 1.5	211	212	N/A	213	214	420	30	1.182	25	0.985

AC Bracket

Scheme 422

Scheme 422: Generator Bracket - Front View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 10 x 1.5	211	212	N/A	213	214	215	THRU		THRU
2	M 8 x 1.25	206	207	N/A	208	209	415	17	0.669	12	0.472
3	M 10 x 1.5	211	212	N/A	213	214	420	THRU		25	0.985
4	M 8 x 1.25	206	207	N/A	208	209	210	22	0.866	17	0.669

Generator Bracket - Front View

Scheme 423

Scheme 423: Generator Bracket - Rear View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 10 x 1.5	211	212	N/A	213	214	215	THRU		THRU

Generator Bracket - Rear View

Scheme 424

Scheme 424: Generator Bracket - Side View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	22	0.866	17	0.669
2	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	12	0.472

Generator Bracket - Side View

Scheme 425

Scheme 425: Engine Front Cover - Front View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	19	0.748	15	0.591
2	M 10 x 1.5	211	212	N/A	213	214	216	20	0.788	16	0.630
3	M 6 x 1.0	201	202	N/A	203	204	205	14	0.551	10	0.394

Engine Front Cover - Front View

Scheme 426

Scheme 426: Engine Front Cover - Side View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 6 x 1.0	201	202	N/A	203	204	205	14	0.551	10	0.394
2	M 6 x 1.0	201	202	N/A	203	204	205	THRU		10	0.394

Engine Front Cover - Side View

Scheme 427

Scheme 427: Engine Front Cover - Bottom View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	13	0.512

Engine Front Cover - Bottom View

Scheme 428

Scheme 428: Lower Rocker Arm Cover - Top View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 6 x 1.0	201	202	N/A	203	204	205	18	0.709	15	0.591

Lower Rocker Arm Cover - Top View

Scheme 429

Scheme 429: Lower Rocker Arm Cover - Side View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	21	0.827	17	0.669

Lower Rocker Arm Cover - Side View

Scheme 430

Scheme 430: Upper Rocker Arm Cover - Top View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 5 x 0.8	N/A	N/A	N/A	N/A	N/A	N/A	13	0.512	10	0.394
2	M 8 x 1.25	206	207	N/A	208	209	210	21	0.827	17	0.669
3	M 6 x 1.0	201	202	N/A	203	204	205	16	0.630	12	0.472

Upper Rocker Arm Cover - Top View

Scheme 431

Scheme 431: Upper Rocker Arm Cover - Bottom View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 5 x 0.8	N/A	N/A	N/A	N/A	N/A	N/A	13	0.512	10	0.394

Upper Rocker Arm Cover - Bottom View

Scheme 432

Scheme 432: Flywheel Housing - Rear View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 12 x 1.75	856	857	N/A	858	859	855	28	1.103	23	0.906

Flywheel Housing - Rear View

Scheme 433

Scheme 433: Flywheel Housing - Top View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	13	0.512

Flywheel Housing - Top View

Scheme 434

Scheme 434: Flywheel Housing - Bottom View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	21	0.827	18	0.709
2	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	14	0.551

Flywheel Housing - Bottom View

Scheme 435

Scheme 435: Flywheel Housing - Right View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	13	0.512

Flywheel Housing - Right View

Scheme 436

Scheme 436: Flywheel Housing - Left View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	13	0.512

Flywheel Housing - Left View

Scheme 437

Scheme 437: Upper Oil Pan - Bottom View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 6 x 1.0	201	202	N/A	203	204	205	THRU		THRU
2	M 6 x 1.0	201	202	N/A	203	204	205	17	0.669	13	0.512

Upper Oil Pan - Bottom View

Scheme 438

Scheme 438: Upper Oil Pan - Top View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 8 x 1.25	206	207	N/A	208	209	210	17	0.669	13	0.512

Upper Oil Pan - Top View

Scheme 439

Scheme 439: Upper Oil Pan - Front View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 6 x 1.0	201	202	N/A	203	204	205	17	0.669	13	0.512
2	M 8 x 1.25	206	207	N/A	208	209	210	21	0.827	17	0.669

Upper Oil Pan - Front View

Scheme 440

Scheme 440: Upper Oil Pan - Rear View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 12 x 1.75	856	857	N/A	858	859	855	22	0.866	16	0.630

Upper Oil Pan - Rear View

Scheme 441

Scheme 441: Upper Oil Pan - Side View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
								Mm	(in)	Mm	(in)
1	M 6 x 1.0	201	202	N/A	203	204	205	17	0.669	13	0.512

Upper Oil Pan - Side View

Scheme 442

Scheme 442: Disassembled Views

Callout	Component Name
100	Engine Block
101	Dowel Pin
102	Engine Block Plug
103	Engine Block Heater
104	Engine Block Plug
105	Crankshaft Bearing Cap Bolt
106	Engine Block Plug
107	Engine Block Plug
108	Upper Crankshaft Bearings
109	Upper Thrust Bearing
110	Crankshaft
111	Crankshaft Pin
112	Lower Crankshaft Bearings
113	Lower Thrust Bearings
113	Lower Thrust Bearings
114	Crankshaft Bearing Cap
115	Crankshaft Bearing Cap Bolt
116	Dowel Pin
117	Crankshaft Gear
118	Crankshaft Position Sensor Exciter Ring
119	Crankshaft Position Sensor Exciter Ring Bolt
120	Crankshaft Position Sensor Exciter Ring Pin
121	Oil Pump Drive Gear
122	Crankshaft Balancer
123	Crankshaft Balancer Washer
124	Crankshaft Balancer Bolt
125	Flywheel - Manual Transmission
126	Flywheel Washer
127	Flywheel Bolt
128	Flywheel Plate
129	Dowel Pin
130	Flywheel - Automatic Transmission
131	Ring Gear
132	Dowel Pin
133	Connecting Rod Cap
134	Connecting Rod Bearings
135	Connecting Rod
136	Connecting Rod Bushing
137	Piston Pin
138	Piston Pin Retainer
139	Piston
140	Piston Rings
141	Connecting Rod Bolt

Callouts For (Scheme 442)

Scheme 443

Callout	Component Name
200	Cylinder Head
200	Cylinder Head
201	Cylinder Head Gasket
201	Cylinder Head Gasket
202	Cylinder Head Bolt
202	Cylinder Head Bolt
203	Exhaust Valve
204	Pushrod
205	Valve Spring Seat
206	Valve Spring
207	Valve Spring Retainer
208	Valve Key
209	Valve Bridge
210	Valve Bridge Pin
211	Rocker Arm Shaft Plug
212	Rocker Arm Shaft Mount
213	Rocker Arm Shaft Mount Bolt
214	Rocker Arm Shaft Assembly Lock Nut
215	Rocker Arm
216	Rocker Arm Shaft Assembly
217	Fuel Injector
218	Fuel Injector O-ring Seal
219	Fuel Injector Gasket
220	Fuel Injector Bracket
221	Fuel Injector Bracket Bolt
222	Fuel Return Pipe
223	Fuel Return Pipe Bolt
224	Glow Plug
225	Valve Lifter Guide Bracket
226	Valve Lifter Guide
227	Valve Lifter
228	Camshaft
229	Camshaft Bearings
230	Camshaft Pin
231	Camshaft Thrust Plate
232	Camshaft Thrust Plate Bolt
233	Camshaft Gear
234	Camshaft Gear Washer
235	Camshaft Gear Bolt
236	Camshaft Position Sensor Exciter Ring
237	Camshaft Position Sensor Exciter Ring Pin
238	Camshaft Position Sensor Exciter Ring Bolt

Callouts For (Scheme 443)

Scheme 444

Callout	Component Name
300	Water Pump
301	Water Pump Bolt
302	Water Pump O-ring Seal
303	Water Pump Gasket
304	Cooling Fan Pulley Insulator
305	Cooling Fan Pulley Stud
306	Cooling Fan Pulley Nut
307	Cooling Fan Pulley Bolt
308	Cooling Fan Pulley
309	Cooling Fan Pulley Bracket
310	Thermostat Housing Bolt
310	Thermostat Housing Bolt
311	Thermostat Housing Stud
312	Thermostat Housing Nut
313	Thermostat Bypass Pipe
314	Thermostat Bypass Pipe O-ring
315	Thermostat Bypass Pipe Gasket
316	Thermostat Bypass Pipe Bolt
317	Thermostat
318	Heater Pipe
319	Heater Pipe Bolt
320	Thermostat Cover
321	Thermostat Cover Bolt
322	Water Outlet
323	Water Outlet Bolt
323	Water Outlet Bolt
324	Water Outlet O-ring Seal
325	Thermostat Housing
326	Thermostat Housing Gasket
327	Thermostat Bypass Pipe Crossover Tube
328	Thermostat Bypass Pipe Crossover Tube Clamps

Callouts For (Scheme 444)

Scheme 445

Callout	Component Name
400	Oil Pump Housing
401	Oil Pump Cover
402	Oil Pump Cover Bolt
403	Oil Pump Drive Gear
404	Oil Pump Driven Gear
405	Oil Pump Gear
406	Oil Pump Gear Nut
407	Oil Level Indicator Tube
408	Oil Level Indicator Tube Bolt
409	Oil Level Indicator
410	Oil Level Indicator Tube O-ring
411	Oil Pump Pipe and Screen Assembly
412	Oil Pump Pipe and Screen Assembly Bolt
413	Oil Pump Pipe and Screen assembly Gasket
414	Upper Oil Pan
415	Upper Oil Pan Bolt
416	Lower Oil Pan
417	Lower Oil Pan Bolt
418	Oil Level Sensor
419	Oil Level Sensor Bolt
420	Oil Level Sensor Retainer
421	Oil Drain Plug
422	Engine Oil Cooler
423	Engine Oil Cooler O-ring
424	Engine Oil Cooler Bolt
424	Engine Oil Cooler Bolt
425	Oil Filter Adapter
426	Oil Filter
427	Oil Pressure Relief Valve Spring Cup
428	Oil Pressure Relief Valve Spring
429	Oil Pressure Relief Valve Spring Plug
430	Oil Cooler Tube
431	Oil Fill Tube
432	Oil Fill Tube Cap
433	Oil Fill Tube Bolt
434	Oil Fill Tube O-ring

Callouts For (Scheme 445)

Scheme 446

Callout	Component Name
500	Intake Manifold
500	Intake Manifold
501	Intake Manifold Bolt
501	Intake Manifold Bolt
502	Intake Manifold Stud
503	Intake Manifold Nut
504	Intake Manifold Crossover
505	Intake Manifold Crossover Gasket
505	Intake Manifold Crossover Gasket
506	Intake Manifold Tube
507	Air Inlet Tube
508	EGR
509	EGR Bracket
510	EGR Gasket
511	EGR Cooler
512	EGR Cooler Bracket
513	Fuel Pipe
514	Fuel Pipe Bolt
515	PCV Hose
516	Lower Turbocharger Heat Shield
517	Turbocharger
518	Turbocharger Bolt
519	Turbocharger Air Inlet
520	Turbocharger Air Inlet Clamp
521	Upper Turbocharger Heat Shield
522	Upper Turbocharger Heat Shield Bolt
523	Fuel Inlet Pipe Assembly
524	Fuel Inlet Pipe Assembly Bolt
524	Fuel Inlet Pipe Assembly Bolt
525	Fuel Feed Pipe
526	Fuel Feed Pipe Bolt
527	Fuel Feed Pipe Nut
528	Fuel Rail Balance Pipe
529	Fuel Rail Balance Pipe Bolt
530	Turbocharger Oil Supply Line
531	Turbocharger Oil Supply Line Bolt
532	Fuel Injection Pump
533	Fuel Injection Pump Bolt
534	Fuel Filter Assembly
535	Fuel Rail
535	Fuel Rail
536	Fuel Rail Bolts
536	Fuel Rail Bolts
537	Fuel Rail Bracket
537	Fuel Rail Bracket
538	Fuel Injection Pump Pipe
539	Injection Pipes
539	Injection Pipes
540	Lower Valve Rocker Arm Cover
540	Lower Valve Rocker Arm Cover
541	Lower Valve Rocker Arm Cover Gasket
541	Lower Valve Rocker Arm Cover Gasket
542	Lower Valve Rocker Arm Cover Bolt
543	Upper Valve Rocker Arm Cover Gasket
543	Upper Valve Rocker Arm Cover Gasket
544	Upper Valve Rocker Arm Cover
544	Upper Valve Rocker Arm Cover
545	Upper Valve Rocker Arm Cover Bolt
545	Upper Valve Rocker Arm Cover Bolt
545	Upper Valve Rocker Arm Cover Bolt
546	Engine Front Cover
547	Engine Front Cover Bolt
548	Flywheel Housing
549	Flywheel Housing Bolt
550	Dowel Pin
551	Crankshaft Rear Oil Seal
552	Flywheel Housing Oil Cooler Adapter
553	Flywheel Housing Oil Cooler Adapter Bolt
554	Flywheel Housing Oil Cooler Adapter Gasket
555	Flywheel Housing O-ring
556	Flywheel Housing Cover
557	Flywheel Housing Cover Bolt
558	Flywheel Housing Cover Gasket
559	Fuel Schrader Valve
560	Fuel Schrader Valve Nuts
561	Fuel Schrader Valve Bracket
561	Fuel Schrader Valve Bracket
562	Intake Pipe
563	Intake Heater

Callouts For (Scheme 446)

Scheme 447

Callout	Component Name
600	Exhaust Manifold
600	Exhaust Manifold
601	Exhaust Manifold Gasket
601	Exhaust Manifold Gasket
602	Exhaust Manifold Bolt
602	Exhaust Manifold Bolt
603	Exhaust Manifold Heat Shield
603	Exhaust Manifold Heat Shield
604	Exhaust Manifold Heat Shield Bolt
604	Exhaust Manifold Heat Shield Bolt
605	Exhaust Manifold Nut
605	Exhaust Manifold Nut
606	Exhaust Pipe
607	Exhaust Pipe Gasket
608	Exhaust Pipe Bolt
609	Exhaust Pipe Stud
610	Exhaust Pipe Nut
611	Exhaust Crossover Pipe
612	Exhaust Crossover Pipe Gasket
613	Exhaust Crossover Pipe Bolt
613	Exhaust Crossover Pipe Bolt
614	Exhaust Crossover Pipe Heat Shield
615	Exhaust Crossover Pipe Heat Shield Bolt
616	Exhaust Outlet Adapter
617	Exhaust Outlet Heat Shield
618	Exhaust Outlet Adapter Clamp

Callouts For (Scheme 447)

Scheme 448

Callout	Component Name
700	Engine Wiring Harness
701	Glow Plug Controller
702	Glow Plug Controller Bracket
703	PCV Cover
704	PCV Cover Bolt
705	PCV Diaphragm
706	PCV Spring
710	Oil Pressure Sensor
711	Coolant Temperature Sensor
712	Crankshaft Position Sensor
713	Crankshaft Position Sensor Bolt
714	Crankshaft Position Sensor O-ring
715	Camshaft Position Sensor
716	Camshaft Position Sensor Bolt
717	Camshaft Position Sensor O-ring
718	Generator Mounting Bracket
719	Idler Pulley
719	Idler Pulley
719	Idler Pulley
720	Idler Pulley Bolt
720	Idler Pulley Bolt
721	Generator Mounting Bracket Bolt
722	Drive Belt Tensioner
723	Drive Belt Tensioner Bolt
724	Power Steering Pump Bracket
725	Power Steering Pump Bracket Bolt

Callouts For (Scheme 448)

Scheme 449

Scheme 449: Engine Identification

The engine identification tag is located on the left side of the block. It is on the front edge of the block.

Engine Mechanical - 6.6L - Introduction: Specifications Chevrolet Silverado 1500

Fastener Tightening Specifications

Engine Mechanical Specifications

Connecting Rod Bearings Selection Specifications

Cylinder Head Gasket Selection Specifications

Crankshaft Bearings Selection Specifications

Valve Clearance Adjustment Specifications

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More articles — Engine Mechanical - 6.6L - Introduction

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