Engine Mechanical Specifications

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ENGINE MECHANICAL SPECIFICATIONS

Application		Specification
Application		Metric	English
General
	Engine Type	90 degree V6
	Displacement	4.3 L	262 CID
	RPO	LU3
	VIN	X
	Bore	101.60 mm	4.012 in
	Stroke	88.39 mm	3.480 in
	Compression Ratio	9.2:1
	Firing Order	1-6-5-4-3-2
	Spark Plug Gap	1.52 mm	0.060 in
Balance Shaft
	Bearing Journal Diameter - Rear	38.085-38.100 mm	1.4994-1.500 in
	Bushing Bore Diameter - Rear	0.050-0.088 mm	0.0020-0.0035 in
Block
	Crankshaft Main Bearing Bore Out-ot-Round	0.050 mm	0.002 in
	Cylinder Bore Diameter	101.618-101.643 mm	4.0007-4.0017 in
	Cylinder Bore Out-of-Round - Production	0.017 mm	0.0007 in
	Cylinder Bore Out-of-Round - Service	0.05 mm	0.002 in
	Cylinder Bore Taper - Production Relief Side	0.025 mm	0.0010 in
	Cylinder Bore Taper - Production Thrust Side	0.012 mm	0.0005 in
	Cylinder Bore Taper - Service	0.025 mm	0.0010 in
	Cylinder Head Deck Surface Flatness	0.050-0.152 mm	0.002-0.006 in
Camshaft
	Camshaft End Play	0.0254-0.2286 mm	0.0010-0.0090 in
	Camshaft Journal Diameter	47.440-47.490 mm	1.8677-1.8696 in
	Camshaft Journal Out-of-Round	0.025 mm	0.001 in
	Camshaft Lobe Lift - Exhaust	7.20-7.30 mm	0.283-0.287 in
	Camshaft Lobe Lift - Intake	6.97-7.07 mm	0.274-0.278 in
	Camshaft Runout	0.065 mm	0.0026 in
Connecting Rod
	Connecting Rod Bearing Clearance - Production	0.038-0.078 mm	0.0015-0.0031 in
	Connecting Rod Bearing Clearance - Service	0.025-0.063 mm	0.0010-0.0025 in
	Connecting Rod Side Clearance	0.15-0.44 mm	0.006-0.017 in
Crankshaft
	Connecting Rod Journal Diameter	57.116-57.148 mm	2.2487-2.2497 in
	Connecting Rod Journal Out-of-Round - Production	0.005 mm	0.0002 in
	Connecting Rod Journal Out-of-Round - Service	0.025 mm	0.0010 in
	Connecting Rod Journal Taper - Production 0.00508 mm	0.00030 in
	Connecting Rod Journal Taper - Service 0.025 mm	0.0010 in
	Crankshaft End Play 0.050-0.20 mm	0.002-0.008 in
	Crankshaft Main Bearing Clearance #1 - Production 0.02-0.05 mm	0.0008-0.0020 in
	Crankshaft Main Bearing Clearance #2, #3, and #4 - Production	0.028-0.058 mm	0.0011-0.0023 in
	Crankshaft Main Bearing Clearance #1 - Service	0.0254-0.05 mm	0.0010-0.0020 in
	Crankshaft Main Bearing Clearance #2, #3, and #4 - Service	0.025-0.063 mm	0.0010-0.0025 in
	Crankshaft Main Journal Diameter #1	62.199-62.217 mm	2.4488-2.4495 in
	Crankshaft Main Journal Diameter #2 and #3	62.191-62.215 mm	2.4485-2.4494 in
	Crankshaft Main Journal Diameter #4	62.179-62.203 mm	2.4480-2.4489 in
	Crankshaft Main Journal Out-of-Round - Production	0.005 mm	0.0002 in
	Crankshaft Main Journal Out-of-Round - Service	0.025 mm	0.0010 in
	Crankshaft Main Journal Taper	0.007 mm	0.0003 in
Exhaust Manifold
	Surface Flatness - Flange to Flange	0.25 mm	0.010 in
	Surface Flatness - Individual Flange	0.05 mm	0.002 in
Intake Manifold
	Surface Flatness	0.10 mm	0.004 in
Lubrication System
	Oil Pressure - at 1,000 RPM	42 kPa	6 psi
	Oil Pressure - at 2,000 RPM	125 kPa	18 psi
	Oil Pressure - at 4,000 RPM	166 kPa	24 psi
Piston Rings
	Piston Ring End Gap - First Compression Ring - Production	0.25-0.40 mm	0.010-0.016 in
	Piston Ring End Gap - Second Compression Ring - Production	0.38-0.58 mm	0.015-0.023 in
	Piston Ring End Gap - Oil Control Ring - Production	0.25-0.76 mm	0.010-0.029 in
	Piston Ring End Gap - First Compression Ring - Service	0.25-0.50 mm	0.010-0.020 in
	Piston Ring End Gap - Second Compression Ring - Service	0.38-0.80 mm	0.015-0.031 in
	Piston Ring End Gap - Oil Control Ring - Service	0.005-0.090 mm	0.0002-0.0035 in
	Piston Ring to Groove Clearance - First Compression Ring - Production	0.030-0.070 mm	0.0012-0.0027 in
	Piston Ring to Groove Clearance - Second Compression Ring - Production	0.076-0.280 mm	0 0030-0.0110 in
	Piston Ring to Groove Clearance - Oil Control Ring - Production	0.046-0.196 mm	0.0018-0.0077 in
	Piston Ring to Groove Clearance - First Compression Ring - Service	0.030-0.085 mm	0.0012-0.0033 in
	Piston Ring to Groove Clearance - Second Compression Ring - Service	0.030-0.085 mm	0.0012-0.0033 in
	Piston Ring to Groove Clearance - Oil Control Ring - Service	0.076-0.200 mm	0.0030-0.0079 in
Pistons and Pins
	Piston - Piston to Bore Clearance - Production	0.018-0.061 mm	0.0007-0.0024 in
	Piston - Piston to Bore Clearance - Service	0.075 mm	0.0029 in
	Pin - Piston Pin Clearance to Connecting Rod Bore - Press Fit	0.012-0.048 mm	0.0005-0.0019 in
	Pin - Piston Pin Clearance to Piston Pin Bore - Production	0.013-0.023 mm	0.0005-0.0009 in
	Pin - Piston Pin Clearance to Piston Pin Bore - Service	0.025 mm	0.0010 in
	Pin - Piston Pin Diameter	23.545-23.548 mm	0.9270-0.9271 in
Valve System
	Valves - Valve Face Angle	45 degrees
	Valves - Valve Seat Angle	46 degrees
	Valves - Valve Seat Runout	0.05 mm	0.002 in
	Valves - Valve Seat Width - Intake	1.016-1.651 mm	0.040-0.065 in
	Valves - Valve Seat Width - Exhaust	1.651-2.489 mm	0.065-0.098 in
	Valves - Valve Stem Oil Seal Installed Height	1-2 mm	0.03937-0.07874 in
	Valves - Valve Stem-to-Guide Clearance - Intake - Production	0.025-0.069 mm	0.0010-0.0027 in
	Valves - Valve Stem-to-Guide Clearance - Intake - Service	0.025-0.094 mm	0.0010-0.0037 in
	Valves - Valve Stem-to-Guide Clearance - Exhaust - Production	0.025-0.069 mm	0.0010-0.0027 in
	Valves - Valve Stem-to-Guide Clearance - Exhaust - Service	0.025-0.094 mm	0.0010-0.0037 in
	Rocker Arms - Valve Rocker Arm Ratio	1.5:1
	Valve Springs - Valve Spring Free Length	51.3 mm	2.02 in
Valve Springs - Valve Spring Installed Height - Intake	42.92-43.43 mm	1.670-1.700 in
Valve Springs - Valve Spring Installed Height - Exhaust	42.92-43.43 mm	1.670-1.700 in
Valve Springs - Valve Spring Load - Closed	338-374 N 43.2 mm	76-84 lb 1.70 in
Valve Springs - Valve Spring Load - Open	832-903 N 32.3 mm	187-203 lb 1.27 in