For 1990-2009 cars

Application | Specification
--- | ---
Metric | English
General

- Engine Type

V6

- RPO Code

LE8

- Displacement

2500 cc

153 CID

- Bore

84 mm

3.31 in

- Stroke

75.0 mm

2.95 in

- Compression Ratio

9.5:1

- Firing Order

1-6-5-4-3-2

- Spark Plug Type-Denso

SK16PR11 or SK20PR11 or K20PR-U11

- Spark Plug Type-NGK

BKR6E11 or IFR5J11 or IFR6J11

- Spark Plug Gap

1.0-1.1 mm

0.039-0.043 in

Compression

- Compression Pressure at 400 RPM-Standard

1400-1600 kPa

199-227 psi

- Compression Pressure-Minimum

1300 kPa

185 psi

- Compression Pressure Difference Between Any Two Cylinders-Maximum

100 kPa

14.2 psi

Engine Vacuum

- Vacuum at Sea Level at 800 RPM

59.9-80.2 kPa

17.7-23.7 in Hg

Lubrication System

- Oil Pressure at 4000 RPM

390-470 kPa

55.5-66.8 psi

- Oil Capacity with Filter Change

5.5 L

5.8 qt

- Oil Capacity without Filter Change

5.0 L

5.2 qt

Cooling System

- Cooling System Capacity

8.0 L

8.5 qt

- Temperature at which Thermostat begins to Open

82°C

179°F

- Temperature at which Thermostat Fully Open

95°C

203°F

- Thermostat Valve Lift

8 mm at 95°C

0.32 in at 203°F

- Cooling Fan Belt Deflection at 10 kg (22 lbs) of Force-New Belt

7-9 mm

0.27-0.35 in

- Cooling Fan Belt Deflection at 10 kg (22 lbs) of Force-Used Belt

9-11 mm

0.35-0.43 in

- Radiator Cap Relief Valve Pressure

108 kPa

15.7 psi

- Temperature at which Fan Clutch begins to Engage

50-70°C

122-158°F

Camshaft

- Journal Outside Diameter

25.959-25.980 mm

1.0220-1.0228 in

- Journal Bore Diameter

26.000-26.033 mm

1.0236-1.0249 in

- Journal Oil Clearance-Standard

0.020-0.074 mm

0.0008-0.0029 in

- Journal Oil Clearance-Maximum

0.12 mm

0.0047 in

- Lobe Height Exhaust-Standard

39.428-39.588 mm

1.5523-1.5586 in

- Lobe Height Exhaust-Minimum

39.400 mm

1.5512 in

- Lobe Height Intake-Standard

39.445-39.605 mm

1.5530-1.5593 in

- Lobe Height Intake-Minimum

39.400 mm

1.5512 in

- Runout

0.10 mm

0.0039 in

Connecting Rods and Bearings

- Connecting Rod Bearing Clearance-Standard

0.039-0.057 mm

0.001-0.0022 in

- Connecting Rod Bearing Clearance-Maximum

0.080 mm

0.0031 in

- Connecting Rod Bushing Inside Diameter

21.003-21.011 mm

0.8269-0.8272 in

- Connecting Rod Bow-Maximum

0.050 mm

0.0020 in

- Connecting Rod Side Clearance-Maximum

0.45 mm

0.0177 in

- Connecting Rod Side Clearance-Standard

0.25-0.40 mm

0.0099-0.0157 in

- Connecting Rod Twist-Maximum

0.10 mm

0.0039 in

- Crankshaft Diameter Out-of-Round and Taper-Maximum

0.01 mm

0.0004 in

- Crankshaft Diameter-Standard

49.982-50.000 mm

1.9678-1.9685 in

- Crankshaft Diameter - 0.25 mm (0.0098 in) Undersize

49.732-49.750 mm

1.9580-1.9586 in

Crankshaft

- Journal Taper

0.01 mm

0.0004 in

- Journal Out-of-Round

0.01 mm

0.0004 in

- Runout at Center Journal

0.06 mm

0.0023 in

- Thrust Bearing Thickness-Standard

2.500 mm

0.0984 in

- Thrust Bearing Thickness - 0.125 mm (0.0049 in) Oversize

2.563 mm

0.1009 in

- Thrust Play-Standard

0.11-0.31 mm

0.0044-0.0122 in

- Thrust Play-Maximum

0.38 mm

0.0149 in

- Reground Journal Finished Diameter

64.732-64.750 mm

2.5485-2.5492 in

Cylinder Head

- Gasket Surface Distortion

0.05 mm

0.0020 in

- Seating Distortion Intake and Exhaust Manifolds

0.10 mm

0.004 in

Cylinder Block

- Cylinder Bore-Standard-Stamped 1

84.01-84.02 mm

3.3075-3.3078 in

- Cylinder Bore-Standard-Stamped 2

84.00-84.01 mm

3.3071-3.3074 in

- Cylinder Bore-Maximum

84.050 mm

3.3090 in

- Cylinder Bore-Allowance for Honing

0.02 mm

0.008 in

- Gasket Surface Distortion-Maximum

0.06 mm

0.0024 in

- Taper and Out-of-Round-Maximum

0.10 mm

0.0039 in

Flywheel

- Flywheel Face Runout

0.2 mm

0.0078 in

Main Bearings

- Crankshaft Journal Diameter - "1" Stamping

64.994-65.000 mm

2.5588-2.5590 in

- Crankshaft Journal Diameter - "2" Stamping

64.988-64.994 mm

2.5586-2.5588 in

- Crankshaft Journal Diameter - "3" Stamping

64.982-64.988 mm

2.5583-2.5586 in

- Main Bearing Cap Bore Diameter - "A" Stamping

70.000-70.006 mm

2.7559-2.7561 in

- Main Bearing Cap Bore Diameter - "B" Stamping

70.006-70.012 mm

2.7561-2.7563 in

- Main Bearing Cap Bore Diameter - "C" Stamping

70.012-70.018 mm

2.7563-2.7566 in

- Main Bearing Clearance-Standard

0.024-0.044 mm

0.0009-0.0017 in

- Main Bearing Clearance-Maximum

0.060 mm

0.0023 in

- Main Bearing Thickness--Standard-Black

2.449-2.503 mm

0.0984-0.0985 in

- Main Bearing Thickness--Standard-Colorless

2.502-2.506 mm

0.0985-0.0986 in

- Main Bearing Thickness--Standard-Yellow

2.505-2.509 mm

0.0986-0.0987 in

- Main Bearing Thickness--Standard-Blue

2.508-2.512 mm

0.0987-0.0988 in

- Main Bearing Thickness--Standard-Pink

2.508-2.500 mm

0.0983-0.0984 in

- Main Bearing Thickness--0.25 mm (0.0098 in) Undersize-Black and Red

2.624-2.628 mm

0.1033-0.1034 in

- Main Bearing Thickness--0.25 mm (0.0098 in) Undersize-Red Only

2.627-2.631 mm

0.1034-0.1035 in

- Main Bearing Thickness--0.25 mm (0.0098 in) Undersize-Yellow and Red

2.630-2.634 mm

0.1035-0.1036 in

- Main Bearing Thickness--0.25 mm (0.0098 in) Undersize-Blue and Red

2.633-2.637 mm

0.1036-0.1037 in

- Main Bearing Thickness--0.25 mm (0.0098 in) Undersize-Pink and Red

2.633-2.637 mm

0.1037-0.1038 in

Oil Pump

- Housing-to-Oil Pump Gear Set Side Clearance-Maximum

0.11 mm

0.0043 in

- Outer Rotor-to-Oil Pump Body Radial Clearance-Maximum

0.15 mm

0.0059 in

- Outer Pressure Relief Valve-Relief Pressure

430 kPa

61.6 psi

- Outer Pressure Relief Spring Free Length

63.5 mm

2.5 in

- Outer Pressure Relief Spring Tension

86 Newtons at 52.0 mm

62.2 lb at 2.05 in

Pistons

- Diameter-Standard Marked 1

83.980-83.990 mm

3.3063-3.3067 in

- Diameter-Standard Marked 2

83.970-83.980 mm

3.3059-3.3062 in

- Diameter - 0.25 mm (0.0098 in) Oversize

84.220-84.240 mm

3.3157-3.165 in

- Diameter - 0.50 mm (0.0196 in) Oversize

84.470-84.490 mm

3.3256-3.3264 in

- Cylinder Bore Diameter-Maximum

84.050 mm

3.3090 in

- Cylinder Bore Taper-Maximum

0.10 mm

0.004 in

- Cylinder Bore Out-of-Round-Maximum

0.10 mm

0.004 in

- Piston Pin Clearance

0.003-0.014

0.0001-0.0005

- Piston Pin Diameter

20.997-21.000 mm

0.8266-0.8268 in

- Piston-to-Cylinder Bore Clearance

0.02-0.04 mm

0.0008-0.0015 in

- Ring End Gap - Top Ring-Standard

0.20-0.35 mm

0.0079-0.0137 in

- Ring End Gap - Top Ring-Maximum

0.07 mm

0.0276 in

- Ring End Gap - Lower Ring-Standard

0.35-0.50 mm

0.0138-0.0196 in

- Ring End Gap - Lower Ring-Maximum

0.07 mm

0.0276 in

- Ring End Gap - Oil Ring-Standard

0.20-0.70 mm

0.0079-0.0275 in

- Ring End Gap - Oil Ring-Maximum

1.8 mm

0.0709 in

- Ring Groove Clearance - Lower Compression Ring

0.020-0.060 mm

0.0008-0.0023 in

- Ring Groove Clearance - Upper Compression Ring

0.030-0.070 mm

0.0012-0.0027 in

Valves

- Guide Inside Diameter

6.000-6.012 mm

0.2362-0.2367 in

- Valve Margin - Intake-Standard

1.0 mm

0.039 in

- Valve Margin - Intake-Minimum

0.6 mm

0.023 in

- Valve Margin - Exhaust-Standard

1.2 mm

0.047 in

- Valve Margin - Exhaust-Minimum

0.7 mm

0.027 in

- Valve Head Radial Runout-Maximum

0.8 mm

0.003 in

- Head Angles for Refinishing - Area Above Seat Contact Surface

15 Degrees

- Head Angles for Refinishing - Area Below Seat Contact Surface-Exhaust Valve Only

60 Degrees

- Head Angles for Refinishing - Seat Contact Surface

45 Degrees

- Head Angles for Refinishing - Face Contact Surface

45 Degrees

- Seating Contact Width-Seat

1.1-1.3 mm

0.0433-0.0512 in

- Seating Contact Width-Face

1.1-1.3 mm

0.0433-0.0512 in

- Inner Spring Free Length-Standard

36.08 mm

1.4204 in

- Inner Spring Free Length-Minimum

35.00 mm

1.3780 in

- Outer Spring Free Length-Standard

40.44 mm

1.5921 in

- Outer Spring Free Length-Minimum

39.22 mm

1.5441 in

- Inner Spring Preload-Standard

6.9-7.9 kg at 27.5 mm

15.2-17.4 lb at 1.08 in

- Inner Spring Preload-Minimum

5.9 kg at 27.5 mm

13.0 lb at 1.08 in

- Inner Spring Side Clearance-Maximum

1.6 mm

0.063 in

- Outer Spring Preload-Standard

15.4-17.8 kg at 31.7 mm

33.9-39.2 lb at 1.25 in

- Outer Spring Preload-Minimum

13.3 kg at 31.7 mm

30.0 lb at 1.25 in

- Outer Spring Side Clearance-Maximum

1.8 mm

0.070 in

- Stem Outside Diameter - Exhaust Valves

5.940-5.955 mm

0.2339-0.2344 in

- Stem Outside Diameter - Intake Valves

5.965-5.980 mm

0.2348-0.2354 in

- Stem-to-Guide Clearance - Exhaust Valves-Standard

0.045-0.072 mm

0.0018-0.0028 in

- Stem-to-Guide Clearance - Exhaust Valves-Maximum

0.09 mm

0.0035 in

- Stem-to-Guide Clearance - Intake Valves-Standard

0.020-0.047 mm

0.0008-0.0018 in

- Stem-to-Guide Clearance - Intake Valves-Maximum

0.07 mm

0.0027 in

- Valve Guide-Oversize

0.03 mm

0.0012 in

- Valve Guide Protrusion

13.5 mm

0.53 in

- Lifter - Outside Diameter

30.959-30.975 mm

1.2188-1.2194 in

- Lifter - Cylinder Head Bore Diameter

31.000-31.025 mm

1.2205-1.2214 in

- Lifter-to-Cylinder Head Oil Clearance-Standard

0.025-0.066 mm

0.0010-0.0025 in

- Lifter-to-Cylinder Head Oil Clearance-Maximum

0.015 mm

0.0059 in

Valve Lash | Hydraulic - Non-Adjustable

#### Standard Main Bearing Selection

Letter on Lower Crankcase | Number on Crankweb
--- | ---
-- | 1 | 2 | 3
A | Black | Colorless | Yellow
B | Colorless | Yellow | Blue
C | Yellow | Blue | Pink

#### Undersize Main Bearing Selection

Letter on Lower Crankcase | Measured Journal Diameter
--- | ---
-- | 64.744-64.750 mm (2.5489-2.5492 in) | 64.738-64.744 mm (2.5487-2.5489 in) | 64.732-64.738 mm (2.5485-2.5487 in)
A | Black and Red | Red Only | Yellow and Red
B | Red Only | Yellow and Red | Blue and Red
C | Yellow and Red | Blue and Red | Pink and Red

#### Piston Selection

Piston Type | Piston Diameter | Cylinder Bore Diameter | Number on Piston | Cylinder Color Code
--- | --- | --- | --- | ---
Standard | 83.970-83.980 mm (3.3059-3.3062 in) | 84.00-84.01 mm (3.3071-3.3074 in) | 2 | Blue
Standard | 83.980-83.990 mm (3.3063-3.3066 in) | 84.01-84.02 mm (3.3075-3.3078 in) | 1 | Red
0.25 mm (0.0098 in) Oversize | 84.220-84.240 mm (3.3157-3.3165 in) | -- | -- | --
0.50 mm (0.0196 in) Oversize | 84.470-84.490 mm (3.3256-3.3264 in) | -- |  |