Engine Mechanical - 3.6l (Lfx) - Specifications

Fastener Tightening Specifications

Application	Specification
Application	Metric	English
Automatic Transmission Flex Plate Bolt
First Pass	30 N.m (1)	22 lb ft (1)
Final Pass	45 Degrees
Camshaft Cover Bolt	10 N.m	89 lb in
Camshaft Intermediate Drive Sprocket Bolt - Idler Sprocket	58 N.m	43 lb ft
Camshaft Position Actuator
Camshaft Bolt	58 N.m	43 lb ft
Oil Control Valve Bolt	10 N.m	89 lb in
Camshaft Position Sensor Bolt	10 N.m	89 lb in
Close Out Cover Bolt	10 N.m	89 lb in
Clutch Pressure Plate Bolts	30 N.m	22 lb ft
Connecting Rod Bolt
First Pass	25 N.m (1)	18 lb ft (1)
Final Pass	110 Degrees
Coolant Drain Plug - M14	50 N.m	37 lb in
Coolant Drain Plug - M20	75 N.m	55 lb in
Coolant Outlet Bolt	10 N.m	89 lb in
Crankshaft Balancer Bolt
First Pass	100 N.m (1)	74 lb ft (1)
Final Pass	150 Degrees
Crankshaft Main Bearing Bolt - Inner
First Pass	20 N.m (1)	15 lb ft (1)
Final Pass	80 degrees
Crankshaft Main Bearing Bolt - Outer
First Pass	15 N.m (1)	11 lb ft (1)
Final Pass	110 Degrees
Crankshaft Main Bearing Bolt - Side
First Pass	30 N.m (1)	22 lb ft (1)
Final Pass	60 Degrees
Crankshaft Position Sensor Bolt	10 N.m	89 lb in
Crankshaft Rear Oil Seal Housing Bolt	10 N.m	89 lb in
Cylinder Head Bolt - M8
First Pass	15 N.m (1)	11 lb ft (1)
Final Pass	75 Degrees
Cylinder Head Bolt - M11
First Pass	30 N.m (1)	22 lb ft (1)
Final Pass	150 degrees
Cylinder Head Core Hole Plug	75 N.m	55 lb ft
Drive Belt Tensioner Bolt	25 N.m	18 lb ft
ECM
Bolt	10 N.m	89 lb in
Bracket Bolt - Front	23 N.m	17 lb ft
Bracket Bolt - Side	10 N.m	89 lb in
Grounding Bolt	4.5 N.m	40 lb in
ECT Sensor	30 N.m	22 lb ft
Engine Flywheel, Manual Trans, Bolt	67 N.m (1)	49 lb ft (1)
Engine Front Cover Studs	15 N.m	11 lb ft
Engine Front Cover Bolt - M6	15 N.m	11 lb ft
Engine Front Cover Bolt - M8
First Pass	20 N.m	14 lb ft
Final Pass	60 Degrees
Engine Front Cover Bolt - M12	65 N.m	48 lb ft
Engine Mount
Bracket Bolt to Engine Block - M8 (AWD)	38 N.m	28 lb ft
Bracket Bolt to Engine Block - M8 (RWD)	22 N.m	16 lb ft
Bracket Bolt to Engine Block - M10	60 N.m	44 lb ft
Nut to Engine Mount Bracket	80 N.m	59 lb ft
Nut to Frame	80 N.m	59 lb ft
Engine Oil Level Switch Bolt	10 N.m	89 lb in
Engine Wiring Harness Bracket
Bolt - Cylinder Head Rear	40 N.m	30 lb ft
Bolt - ECM Bracket Side	23 N.m	17 lb ft
Bolt - ECM Bracket Top	10 N.m	89 lb in
Bolt - Left Side Oil Filter Adapter	10 N.m	89 lb in
Bolt - Left Side Oil Pan	10 N.m	89 lb in
Bolt - Near Crankshaft Position Sensor	50 N.m	37 lb ft
Bolt - Right Side Block Front	23 N.m	17 lb ft
Bolt - Right Side Head Front	10 N.m	89 lb in
Engine Wiring Harness Ground
Bolt - ECM Bracket Top	10 N.m	89 lb in
Bolt - Left Cylinder Head Side	10 N.m	89 lb in
Bolt - Right Cylinder Head Rear	10 N.m	89 lb in
EVAP Purge Valve Bolt	10 N.m	89 lb in
Fuel Injection Fuel Rail Fuel Pressure Sensor	33 N.m	25 lb ft
Fuel Line Pressure Fuel Line Fitting Nuts	50 N.m	37 lb ft
Fuel Pump Bolts - High Pressure	15 N.m (1)	11 lb ft (1)
Fuel Rail Bolt	25 N.m	18 lb ft
Generator
Bolt	50 N.m	37 lb ft
Bracket Bolt - Front	50 N.m	37 lb ft
Bracket Bolt - Side	22 N.m	16 lb ft
Cable Nut	13 N.m	115 lb in
Ground Cable Bolt	50 N.m	37 lb ft
Heater Inlet and Outlet Pipe Assembly Bolts - M6	10 N.m	89 lb in
Heater Inlet and Outlet Pipe Assembly Bolts - M8	22 N.m	16 lb ft
Idler Pulley Bolt	58	43 lb ft
Ignition Coil Bolt	10 N.m	89 lb in
Intake Manifold
Brace Bolt - Engine Front Cover M12	65 N.m	48 lb ft
Brace Bolt/Ball Stud - Intake Manifold M6	10 N.m	89 lb in
Ball Stud to Cam Cover M6	5 N.m	44 lb in
Sight Shield Ball Stud	10 N.m	89 lb in
Tuning Valve Bolt	10 N.m	89 lb in
Upper-to-Cylinder Head Bolt - Long	25 N.m	18 lb ft
Upper-to-Cylinder Head Bolt - Short	25 N.m	18 lb ft
Upper-to-Lower Intake Manifold Bolt	25 N.m	18 lb ft
Knock Sensor Bolt	25 N.m	18 lb ft
Manifold Absolute Pressure Sensor (MAP) Bolt	4	35 lb in
Oil Filter Cap	25 N.m	18 lb ft
Oil Filter Housing Adapter
Bolt - Cylinder Head M10	58 N.m	43 lb ft
Bolt - Engine Block M8	25 N.m	18 lb ft
Oil Gallery Plug - M14	50 N.m	37 lb ft
Oil Gallery Plug - M20	75 N.m	55 lb ft
Oil Level Indicator Tube Bolt	10 N.m	89 lb in
Oil Pan Bolt- Block M8	25 N.m	18 lb ft
Oil Pan Bolt- Crankshaft Rear Oil Seal Housing M6	10 N.m	89 lb in
Oil Pan Drain Plug	25 N.m	18 lb ft
Oil Pan Windage Tray Bolt	10 N.m	89 lb in
Oil Pressure Sender	20 N.m	15 lb ft
Oil Pump Bolt	25 N.m	18 lb ft
Oxygen Sensor Pump Converter Pipe	42 N.m	31 lb ft
PCV Tube Bracket Bolt	10 N.m	89 lb in
Piston Oil Cooling Nozzle Bolt	10 N.m	89 lb in
Power Steering Pump
Bracket to Engine Bolt	58 N.m	43 lb ft
Pump to Bracket Bolt	22 N.m	16 lb ft
Reservoir Bolt - Lower	25 N.m	18 lb ft
Reservoir Bolt - Upper	9 N.m	80 lb in
Primary Camshaft Drive Chain
Left Lower Guide Bolt - Oil Pump - Second Design	25 N.m	18 lb ft
Tensioner Bolt	25 N.m	18 lb ft
Upper Guide Bolt	25 N.m	18 lb ft
Radiator Outlet Pipe
Bolt - Generator Bracket	25 N.m	18 lb ft
Bolt - Right Cylinder Head Rear	58 N.m	43 lb ft
Bolt - Thermostat Housing	25 N.m	18 lb ft
Secondary Air Injection (SAI) Check Valve Bolt	25 N.m	18 lb ft
Secondary Camshaft Drive Chain
Guide Bolt	25 N.m	18 lb ft
Shoe Bolt	25 N.m	18 lb ft
Tensioner Bolt	25 N.m	18 lb ft
Spark Plug	18 N.m	13 lb ft
Starter Motor
Bolt	58 N.m	43 lb ft
Cable Nut	13 N.m	115 lb in
Suction Tube Bolt	10 N.m	89 lb in
Suction Screen Bolt	10 N.m	89 lb in
Thermostat Housing Bolt	10 N.m	89 lb in
Throttle Body Bolt	10 N.m	89 lb in
Torque Converter Bolt	60 N.m	44 lb ft
Transmission
Mount Bolt to Transmission - RPO M82	60 N.m	45 lb ft
Range Selector Lever Nut	9.5 N.m	84 lb in
To Engine Bolt	50 N.m	37 lb ft
Water Pump Bolt
First Pass	10 N.m (1)	89 lb in (1)
Second Pass	10 N.m	89 lb in
Final Pass	45 Degrees
Water Pump Pulley Bolt	10 N.m	89 lb in
1. Use NEW fastener.

Fastener Tightening Specifications

Engine Mechanical Specifications (LFX)

Application	Specification
Application	Metric	English
General
Engine Type	V-6
Displacement	3.6 Liter	220 cu in
RPO	LFX
VIN	3
Bore	94 mm	3.7008 in
Stroke	85.6 mm	3.37 in
Compression Ratio	11.5:1
Firing Order	1-2-3-4-5-6
Spark Plug Gap	0.95-1.10 mm	0.0375-0.0433 in
Block
Crankshaft Main Bearing Bore Diameter	72.867-72.881 mm	2.8688-2.8693 in
Cylinder Bore Diameter	93.992-94.008 mm	3.7005-3.7011 in
Cylinder Bore Out-of-Round - Production Max.	0.026 mm	0.001 in
Cylinder Bore Taper	0.020 mm	0.0008 in
Camshaft
Camshaft Bearing Inside Diameter - Front Number 1	35.000-35.020 mm	1.3779-1.3787 in
Camshaft Bearing Inside Diameter - Middle and Rear Number 2-4	27.000-27.020 mm	1.0630-1.0638 in
Camshaft End Play	0.072-0.490 mm	0.0028-0.0190 in
Camshaft Journal Diameter - Front Number 1	34.936-34.960 mm	1.3754-1.3764 in
Camshaft Journal Diameter - Middle and Rear Number 2-4	26.936-26.960 mm	1.0605-1.0614 in
Camshaft Journal Out-of-Round	0.006 mm	0.0002 in
Camshaft Journal to Bore Clearance	0.040-0.084 mm	0.0016-0.0033 in
Camshaft Lobe Lift - Exhaust	42.425-42.725 mm	1.6703-1.6821 in
Camshaft Lobe Lift - Intake	42.385-42.685 mm	1.6687-1.6805 in
Camshaft Runout - Front and Rear Number 1 and 4	0.025 mm	0.0010 in
Camshaft Runout - Middle 2 and 3	0.050 mm	0.0020 in
Valve Lift - Exhaust	10.8 mm	0.4252 in
Valve Lift - Intake	10.8 mm	0.4252 in
Connecting Rod
Connecting Rod Bearing Clearance	0.010-0.070 mm	0.0004-0.0026 in
Connecting Rod Bore Diameter - Bearing End	59.620-59.636 mm	2.3472-2.3479 in
Connecting Rod Bore Diameter - Pin End - Production	24.009-24.019 mm	0.9452-0.9456 in
Connecting Rod Bore Diameter - Pin End - Service Maximum	24.021 mm	0.9457 in
Connecting Rod Length - Center to Center	152.400 mm	6.0000 in
Connecting Rod Side Clearance	0.095-0.355 mm	0.00037-0.0140 in
Connecting Rod Width - Bearing End
Production	21.775 mm	0.8573 in
Service	21.725-21.825 mm	0.8553-0.8593 in
Connecting Rod Width - Pin End
Production	21.775 mm	0.8573 in
Service	21.725-21.825 mm	0.8553-0.8593 in
Crankshaft
Connecting Rod Journal Diameter	55.992-56.008 mm	2.2044-2.2050 in
Connecting Rod Journal Out-of-Round	0.005 mm	0.0002 in
Connecting Rod Journal Taper	0.005 mm	0.0002 in
Connecting Rod Journal Width
Production	22.000 mm	0.8661 in
Service	21.920-22.080 mm	0.8630-0.8693 in
Crankshaft End Play	0.100-0.330 mm	0.0039-0.0130 in
Crankshaft Main Bearing Clearance	0.031-0.069 mm	0.0012-0.0027 in
Crankshaft Main Journal Diameter	67.992-68.008 mm	2.6768-2.6775 in
Crankshaft Main Journal Out-of-Round	0.005 mm	0.0002 in
Crankshaft Main Journal Taper	0.005 mm	0.0002 in
Crankshaft Main Journal Thrust Wall
Runout	0.000-0.040 mm	0.0000-0.0016 in
Square	0.000-0.010 mm	0.0000-0.0004 in
Crankshaft Main Journal Width, #2, 4
Production	24.000 mm	0.9449 in
Service	23.900-24.100 mm	0.9409-0.9488 in
Crankshaft Main Journal Width, #3
Production	24.400 mm	0.9606 in
Service	24.360-24.440 mm	0.9591-0.9622 in
Crankshaft Pilot Bearing Bore Diameter	20.965-20.995 mm	0.8254-0.8266 in
Crankshaft Rear Flange Runout	0.025 mm	0.0010 in
Crankshaft Reluctor Ring Runout - Maximum	1.500 mm	0.0591 in
Crankshaft Runout	0.030 mm	0.0012 in
Crankshaft Thrust Bearing Clearance	0.076-0.305 mm	0.0030-0.0120 in
Crankshaft Thrust Surface - Height Diameter	95.000 mm	3.7401 in
Crankshaft Thrust Surface Runout	0.040 mm	0.0016 in
Cylinder Head
Valve Guide Bore - Exhaust	6.000-6.020 mm	0.2362-0.2370 in
Valve Guide Bore - Intake	6.000-6.020 mm	0.2362-0.2370 in
Valve Guide Installed Height	14.050-14.550 mm	0.5531-0.5728 in
Valve Lifter Bore Diameter	12.008-12.030 mm	0.4728-0.4736 in
Lubrication System
Oil Capacity - with Filter	5.7 Liters	6.0 Quarts
Oil Capacity - without Filter	5.2 Liters	5.5 Quarts
Oil Pressure - Minimum @ Idle	69 kPa	10 psi
Oil Pressure - Minimum @ 2,000 RPM	138 kPa	20 psi
Piston Cooling Jet Valve Opening Pressure	1.7-2.3 bar	25-33 psi
Piston Rings
Piston Ring End Gap
First Compression Ring - Nominal	0.150-0.250 mm	0.0059-0.0098 in
First Compression Ring - Maximum, Ring in Bore	0.290 mm	0.0114 in
Second Compression Ring - Nominal	0.300-0.450 mm	0.0118-0.0177 in
Second Compression Ring - Maximum, Ring in Bore	0.490 mm	0.0193 in
Oil Control Ring	0.150-0.350 mm	0.0059-0.0138 in
Piston Ring to Groove Clearance
First Compression Ring	0.030-0.075 mm	0.0012-0.0030 in
Second Compression Ring	0.015-0.060 mm	0.0006-0.0024 in
Oil Control Ring	0.030-0.170 mm	0.0012-0.0067 in
Piston Ring Thickness
First Compression Ring	0.975-0.990 mm	0.0384-0.0390 in
Second Compression Ring	1.170-1.195 mm	0.0461-0.0470 in
Oil Control Ring	1.360-1.480 mm	0.0535-0.0583 in
Pistons and Pins
Piston
Piston Diameter - Measured Over Skirt Coating	93.976-94.014 mm	3.6998-3.7013 in
Piston Diameter - Service Limit Minimum w/more than 10K miles	93.926 mm	3.6979 in
Piston Pin Bore Diameter	24.004-24.009 mm	0.9450-0.9452 in
Piston Ring Groove Width - First Compression Ring	1.020-1.050 mm	0.0402-0.0413 in
Piston Ring Groove Width - Second Compression Ring	1.210-1.230 mm	0.0476-0.0484 in
Piston Ring Groove Width - Oil Control Ring	1.510-1.530 mm	0.0594-0.0602 in
Piston to Bore Clearance - Production; Measured at Skirt Coating	0.022-0.032 mm	0.0009-0.0013 in
Piston to Bore Clearance - Service Limit Maximum, w/more than 10k miles	0.050 mm	0.0020 in
Pin
Piston Pin Clearance to Connecting Rod Bore - Production	0.009-0.022 mm	0.0004-0.0009 in
Piston Pin Clearance to Connecting Rod Bore - Service Maximum	0.030 mm	0.0012 in
Piston Pin Clearance to Piston Pin Bore - Production	0.004-0.012 mm	0.0002-0.0005 in
Piston Pin Clearance to Piston Pin Bore - Service Maximum	0.015 mm	0.0006 in
Piston Pin Diameter	23.997-24.000 mm	0.9448-0.9449 in
Piston Pin Length	52.600-53.100 mm	2.0709-2.0906 in
Valve System
Valves
Valve Face Angle	44.25 degrees
Valve Face Runout	0.0500 mm	0.0020 in
Valve Face Width - Exhaust	DO NOT GRIND, REPLACE VALVE	DO NOT GRIND, REPLACE VALVE
Valve Face Width - Intake	DO NOT GRIND, REPLACE VALVE	DO NOT GRIND, REPLACE VALVE
Valve Head Diameter - Exhaust	30.470-30.730 mm	1.1996-1.2098 in
Valve Head Diameter - Intake	38.170-38.430 mm	1.5028-1.5130 in
Valve Installed Height	35.23-36.69 mm	1.3870-1.4445 in
Valve Length - Exhaust	95.11 mm	3.74 in
Valve Length - Intake	100.630 mm	3.9618 in
Valve Seat Angle - Seating Surface	45 degrees
Valve Seat Angle - Relief Surface	30 degrees
Valve Seat Angle - Undercut Surface	60 degrees
Valve Seat Roundness- Maximum	0.025 mm	0.0010 in
Valve Seat Runout - Maximum	0.080 mm	0.0031 in
Valve Seat Width - Exhaust Seating Surface	1.400-1.800 mm	0.0551-0.0709 in
Valve Seat Width - Exhaust Relief Surface	0.700-0.900 mm	0.0276-0.0354 in
Valve Seat Width - Intake Seating Surface	1.000-1.400 mm	0.0394-0.0551 in
Valve Seat Width - Intake Relief Surface	0.500-0.700 mm	0.0197-0.0276 in
Valve Stem Diameter - Exhaust	5.945-5.965 mm	0.2341-0.2348 in
Valve Stem Diameter - Intake	5.945-5.965 mm	0.2341-0.2348 in
Valve Stem-to-Guide Clearance - Exhaust	0.035-0.075 mm	0.0014-0.0030 in
Valve Stem-to-Guide Clearance - Intake	0.035-0.075 mm	0.0014-0.0030 in
Valve Lifters - Stationary Hydraulic Lash Adjuster (SHLA)
Valve Lifter (SHLA) Diameter	11.989-12.000 mm	0.4720-0.4724 in
Valve Lifter (SHLA)-to-Bore Clearance	0.008-0.041 mm	0.0003-0.0016 in
Rocker Arms
Valve Rocker Arm Ratio	1.68 to 1
Valve Rocker Arm Roller Diameter	17.750-17.800 mm	0.6988-0.7008 in
Valve Springs
Valve Spring Coil Thickness	3.250 x 3.900 mm	0.1280 x 0.1535 in
Valve Spring Diameter - Inside Top	12.200-12.700 mm	0.4803-0.5000 in
Valve Spring Diameter - Outside Top	20.250 mm	0.7972 in
Valve Spring Diameter - Inside Bottom	17.950-18.450 mm	0.7067-0.7264 in
Valve Spring Diameter - Outside Bottom	26.000 mm	1.0236 in
Valve Spring Free Length	42.500-45.500 mm	1.6732-1.7913 in
Valve Spring Installed Height - Closed	35.000 mm	1.3779 in
Valve Spring Installed Height - Open	24.000 mm	0.9449 in
Valve Spring Load - Closed	247-273 N	56-61 lb
Valve Spring Load - Open	598-662 N	134-149 lb

Engine Mechanical Specifications (LFX)

Adhesives, Fluids, Lubricants, and Sealers

Application	Type of Material	GM Part Number
Application	Type of Material	United States	Canada
Block Pan Rail	Sealant	12378521	88901148
Camshaft Prelube	Lubricant	88862586	88862827
Coolant Drain Threaded Plug	Sealant	12346004	10953480
Coolant Expansion Plugs	Threadlocker	12345382	10953489
Coolant and Oil Plug Threads	Sealant	12346004	10953480
Crankshaft Bearing Surfaces	5W-30	19293000	19286321
Crankshaft Connecting Rod Bearing Journal	5W-30	19293000	19286321
Crankshaft Prelube	5W-30	19293000	19286321
Crankshaft Rear Oil Seal Housing	Sealant	12378521	88901148
Engine Front Cover/Split Lines	Sealant	12378521	88901148
Engine Oil	5W-30	19293000	19386321
Fuel Injection Fuel Rail Fuel Pressure Sensor Sealing Cone/Threads	5W-30	19293000	19286321
Fuel Rail Sealing Cone/Threads	5W-30	19293000	19286321
Ignition Coils	Lubricant	19260901	19260902
Oil Gallery Threaded Plug	Sealant	12346004	10953480
Oil Pan, Engine Front Cover, Crankshaft Rear Oil Seal Housing	Sealant	12378521 (150g cartridge)	88901148
	Sealant	88861417 (75 gram squeeze tube)	88861418
Piston Pin Bores	5W-30	19293000	19286321
Positive Crankcase Ventilation (PCV) Orifice	Sealant	12378521	88901148
Stationary Hydraulic Lash Adjuster (SHLA)	5W-30	19293000	19286321
SHLA Bores in Cylinder Head	5W-30	19293000	19286321
SHLA Pivot Spheres	5W-30	19293000	19286321
Thread Repair	Cleaner	88862650	88901247
Thread Repair	Threadlocker	89021297	10953488
Thread Repair Cutting Oil	Lubricant	1052864	992881
Valve Stem/Guide ID	5W-30	19293000	19286321

Adhesives, Fluids, Lubricants, and Sealers

Scheme 132

Scheme 132: Left Cylinder Head Camshaft Cover Face

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.7087
2	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU
3	M6 x 1.0	701	N/A	N/A	203	204	205	28.5	1.1220	24.0	0.9449
4	M20 x 1.5	715	716	N/A	717	718	719	25.0	0.9842	17.0	0.6693

Left Cylinder Head Camshaft Cover Face

Scheme 133

Scheme 133: Left Cylinder Head Front Face

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	THRU		THRU
2	M12 x 1.75	856	857	N/A	858	859	416	40.0	1.5748	32.5	1.2795
3	M8 x 1.25	206	207	N/A	208	209	210	18.0	0.7087	22.5	0.8858

Left Cylinder Head Front Face

Scheme 134

Scheme 134: Left Cylinder Head Intake Face (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055

Left Cylinder Head Intake Face (LLT)

Scheme 135

Scheme 135: Left Cylinder Head Intake Face (LF1)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055

Left Cylinder Head Intake Face (LF1)

Scheme 136

Scheme 136: Left Cylinder Head Exhaust Face (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630
2	M12 x 1.5	705	706	N/A	707	708	709	27.5	1.0827	13.0	0.5118
3	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.0000
4	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055

Left Cylinder Head Exhaust Face (LLT)

Scheme 137

Scheme 137: Left Cylinder Head Exhaust Face (LF1)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630
2	M12 x 1.5	705	706	N/A	707	708	709	27.5	1.0827	13.0	0.5118
3	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.0000
4	M10 x 1.5	211	212	N/A	213	214	215	26.5	1.0433	20.0	0.7874

Left Cylinder Head Exhaust Face (LF1)

Scheme 138

Scheme 138: Left Cylinder Head Rear Face (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630

Left Cylinder Head Rear Face (LLT)

Scheme 139

Scheme 139: Left Cylinder Head Rear Face (LF1)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630

Left Cylinder Head Rear Face (LF1)

Scheme 140

Scheme 140: Right Cylinder Head Camshaft Cover Face

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU
2	M6 x 1.0	701	N/A	N/A	203	204	205	28.5	1.1220	24.0	0.9449
3	M20 x 1.5	715	716	N/A	717	718	719	25.0	0.9842	17.0	0.6693
4	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.7087

Right Cylinder Head Camshaft Cover Face

Scheme 141

Scheme 141: Right Cylinder Head Front Face

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	THRU		THRU
2	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8880	18.0	0.7087
3	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU
4	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
5	M12 x 1.75	856	857	N/A	858	859	416	40.0	1.5748	32.5	1.2795

Right Cylinder Head Front Face

Scheme 142

Scheme 142: Right Cylinder Head Intake Face (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055

Right Cylinder Head Intake Face (LLT)

Scheme 143

Scheme 143: Right Cylinder Head Intake Face (LF1)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055

Right Cylinder Head Intake Face (LF1)

Scheme 144

Scheme 144: Right Cylinder Head Exhaust Face (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.0000
2	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630
3	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055

Right Cylinder Head Exhaust Face (LLT)

Scheme 145

Scheme 145: Right Cylinder Head Exhaust Face (LF1)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.0000
2	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630
3	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
4	M10 x 1.5	211	212	N/A	213	214	215	26.5	1.0433	20.0	0.7874

Right Cylinder Head Exhaust Face (LF1)

Scheme 146

Scheme 146: Right Cylinder Head Rear Face

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630

Right Cylinder Head Rear Face

Scheme 147

Scheme 147: Engine Block Front

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
2	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630
3	M8 x 1.25	206	207	N/A	208	209	210	THRU		22.0	0.8661
4	M8 x 1.25	206	207	N/A	208	209	210	THRU		THRU
5	M10 x 1.5	211	212	N/A	213	214	215	28.0	1.1024	28.0	1.1024
6	M10 x 1.5	211	212	N/A	213	214	215	THRU		20.0	0.7874
7	M10 x 1.5	211	212	N/A	213	214	215	THRU		28.0	1.1024

Engine Block Front

Scheme 148

Scheme 148: Engine Block Left Side

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
2	M20 x 1.5	715	716	N/A	717	718	719	30.0	1.1810	20.0	0.7874
3	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3190	27.0	1.0630
4	M14 x 1.5	409	410	N/A	411	412	735	THRU		15.0	0.5905
5	M8 x 1.25	206	207	N/A	208	209	415	16.5	0.6496	11.0	0.4331

Engine Block Left Side

Scheme 149

Scheme 149: Engine Block Right Side

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.7087
2	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
3	M14 x 1.5	409	410	N/A	411	412	735	THRU		15.0	0.5905
4	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3190	27.0	1.0630

Engine Block Right Side

Scheme 150

Scheme 150: Engine Block Rear

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	420	33.5	1.3190	27.0	1.0630
2	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.7087
3	M14 x 1.5	409	410	N/A	411	412	735	THRU		15.0	0.5905
4	M10 x 1.5	211	212	N/A	213	214	216	39.5	1.5551	33.0	1.2992
5	M10 x 1.5	211	212	N/A	213	214	420	THRU		THRU

Engine Block Rear

Scheme 151

Scheme 151: Engine Block Bottom

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 2.0	720	N/A	N/A	721	722	104	56.0	2.2047	49.0	1.9291
2	M8 x 1.25	702	N/A	N/A	703	704	620	46.0	1.8110	40.5	1.5945
3	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
4	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU

Engine Block Bottom

Scheme 152

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
2	M11 x 2.0	723	N/A	N/A	724	725	108	102.5	4.0354	94.0	3.7008

Engine Block Left Deck Face

Scheme 153

Scheme 153: Engine Block Right Deck Face

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M11 x 2.0	723	N/A	N/A	724	725	108	102.5	4.0354	94.0	3.7008
2	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055

Engine Block Right Deck Face

Scheme 154

Scheme 154: Engine Front Cover

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU
2	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
3	M6 x 1.0	201	202	N/A	203	204	205	21.5	0.8465	18.0	0.7087
4	M10 x 1.5	211	212	N/A	213	214	215	THRU		THRU
5	M10 x 1.5	211	212	N/A	213	214	420	32.5	1.2795	27.0	1.0630

Engine Front Cover

Scheme 155

Scheme 155: Intake Manifold - Top (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU

Intake Manifold - Top (LLT)

Scheme 156

Scheme 156: Intake Manifold - Front (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU

Intake Manifold - Front (LLT)

Scheme 157

Scheme 157: Intake Manifold - Rear (LLT)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	THRU		THRU

Intake Manifold - Rear (LLT)

Scheme 158

Scheme 158: Oil Pan Front (RWD)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	420	33.5	1.3189	27.0	1.0630
2	M8 x 1.25	206	207	N/A	208	209	210	28.5	1.1220	23.0	0.9055
3	M8 x 1.25	610	N/A	N/A	208	209	620	37.5	1.4764	32.0	1.2598

Oil Pan Front (RWD)

Scheme 159

Scheme 159: Oil Pan Left Side (RWD)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	22.5	0.8858	18.0	0.7087

Oil Pan Left Side (RWD)

Scheme 160

Scheme 160: Oil Pan Right Side (RWD)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M12 x 1.75	856	857	N/A	858	859	416	THRU		THRU

Oil Pan Right Side (RWD)

Scheme 161

Scheme 161: Oil Pan Rear (RWD)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	THRU		THRU
2	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630

Oil Pan Rear (RWD)

Scheme 162

Scheme 162: Oil Pan Rear (AWD)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	THRU		THRU
2	M10 x 1.5	211	212	N/A	213	214	215	33.5	1.3189	27.0	1.0630

Oil Pan Rear (AWD)

Scheme 163

Scheme 163: Oil Pan Top (RWD)

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
		J 42385						MM	(IN)	MM	(IN)
1	M10 x 1.5	211	212	N/A	213	214	215	THRU		THRU

Oil Pan Top (RWD)

Engine Mechanical - 3.6l (Lfx) - Specifications Cadillac ATS I

Fastener Tightening Specifications

Engine Mechanical Specifications (LFX)

Adhesives, Fluids, Lubricants, and Sealers

Scheme 132

Scheme 133

Scheme 134

Scheme 135

Scheme 136

Scheme 137

Scheme 138

Scheme 139

Scheme 140

Scheme 141

Scheme 142

Scheme 143

Scheme 144

Scheme 145

Scheme 146

Scheme 147

Scheme 148

Scheme 149

Scheme 150

Scheme 151

Scheme 152

Scheme 153

Scheme 154

Scheme 155

Scheme 156

Scheme 157

Scheme 158

Scheme 159

Scheme 160

Scheme 161

Scheme 162

Scheme 163

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