SPECIFICATIONS

Type

60° DOHC V-6 24-Valve

Compression Ratio

10.2:1

Lead Cylinder

#1 Right Bank

Firing Order

1-2-3-4-5-6

Description

Metric

Standard

Displacement

2.985 Liters

182 Cubic Inches

Bore and Stroke

91.0 x 76.5 mm

3.583 in. x 3.012 in.

Cylinder Bore Diameter - Grade 1

90.995 mm ± 0.005 mm

3.5825 in. ± 0.0002 in.

Cylinder Bore Diameter - Grade 2

91.005 mm ± 0.005 mm

3.5829 in. ± 0.0002 in.

Cylinder Bore Out-of-Round (Max.)

0.009 mm

0.00035 in.

Cylinder Bore Cylindricity

0.014 mm

0.0006 in.

Crankshaft Bore Taper* (Max.)

0.006 mm

0.0002 in.

*Measured over length of bulkhead

Engine Oil Galley Plug**

0.0 mm – 2.0 mm

0.0 in – 0.0787 in

**Measured proud of machined surface

Material

Cast Aluminum Alloy

Piston Diameter (Metal to Metal) - Grade 1

90.955 mm ± 0.005 mm

3.5809 in. ± 0.0002 in.

Piston Diameter (Metal to Metal) - Grade 2

90.965 mm ± 0.005 mm

3.5813 in. ± 0.0002 in.

Piston Diameter (Metal to Coating) - Grade 1

90.970 - 91.000 mm

3.5815 - 3.5827 in.

Piston Diameter (Metal to Coating) - Grade 2

90.980 - 91.010 mm

3.5819 - 3.5831 in.

Clearance at Size Location (Metal to Metal)

0.030 - 0.050 mm

0.0012 - 0.0020 in.

Clearance at Size Location (Metal to Coating)

–0.010 - 0.030 mm

–0.0004 - 0.0012 in.

Piston Weight

375.3 - 385.3 grams

13.238- 13.591 oz.

Piston Pin Offset

0.8 mm

0.031 in.

Piston Ring Groove Diameter - No. 1

83.85 - 83.65 mm

3.301 - 3.293 in.

Piston Ring Groove Diameter - No. 2

82.05 - 81.85 mm

3.230 - 3.222 in.

Piston Ring Groove Diameter - No. 3

84.20 - 84.00 mm

3.315 - 3.307 in.

Type

Full Floating

Pin Diameter

21.9985 ± 0.0015 mm

0.86608 ± 0.00006 in.

Clearance in Piston

0.003 - 0.012 mm

0.0001 - 0.0005 in.

Clearance in Rod

0.011 - 0.024 mm

0.0004 - 0.0009 in.

Ring Gap - Number 1 Ring (Top)

0.22 - 0.37 mm

0.009 - 0.015 in.

Ring Gap - Number 2 Ring (Center)

0.27 - 0.42 mm

0.011 - 0.017 in.

Ring Gap - Oil Control Ring (Steel Rails)

0.15 - 0.66 mm

0.006 - 0.026 in.

Number 1 Ring (Top)

0.025 - 0.083 mm

0.0010 - 0.0033 in.

Number 2 Ring (Center)

0.030 - 0.078 mm

0.0012 - 0.0031 in.

Oil Control Ring (Steel Rails)

0.061 - 0.210 mm

0.0024 - 0.0083 in.

Number 1 Ring (Top)

2.80 - 3.00 mm

0.110 - 0.118 in.

Number 2 Ring (Center)

3.37 - 3.67 mm

0.133 - 0.144 in.

Oil Control Ring (Steel Rails)

1.930 - 2.083 mm

0.076 - 0.082 in.

Bearing Clearance (With Crush)

0.023 - 0.064 mm

0.0009 - 0.0025 in.

Side Clearance

0.070 - 0.370 mm

0.0028 - 0.0146 in.

Side Clearance (Max.)

0.370 mm

0.0146 in.

Piston Pin Bore Diameter

22.016 ± 0.005 mm

0.8668 ± 0.0002 in.

Bearing Bore Out of Round (Max.)

0.008 mm

0.0003 in.

Total Weight (Less Bearing)

512.6 ± 8 grams

18.08 ± 0.28 oz.

Diameter

67.996 ± 0.011 mm

2.677 ± 0.0004 in.

Bearing Clearance

0.024 - 0.050 mm

0.0009 - 0.0020 in.

Bearing Clearance (Max.)

0.050 mm

0.0020 in.

Out of Round (Max.)

0.005 mm

0.0002 in.

Taper (Max.)

0.005 mm

0.0002 in.

End Play

0.050 - 0.290 mm

0.0020 - 0.0114 in.

End Play (Max.)

0.290 mm

0.0114 in.

Diameter

59.0 ± 0.009 mm

2.3228 ± 0.0035 in.

Bearing Clearance

0.023 - 0.064 mm

0.0009 - 0.0025 in.

Out of Round (Max.)

0.005 mm

0.0002 in.

Taper (Max.)

0.005 mm

0.0002 in.

Bore Diameter - No. 1 Cam Towers

32.020 - 32.041 mm

1.2606 - 1.2615 in.

Bore Diameter - No. 2, 3, 4 Cam Towers

24.020 - 24.041 mm

0.9457 - 0.9465 in.

Bearing Journal Diameter - No. 1

31.976 - 31.995 mm

1.2589 - 1.2596 in.

Bearing Journal Diameter - No. 2, 3, 4

23.977 - 23.996

0.9440 - 0.9447 in.

Bearing Clearance - No. 1

0.025 - 0.065 mm

0.00010 - 0.0026 in.

Bearing Clearance - No. 2, 3, 4

0.024 - 0.064 mm

0.0009 - 0.0025 in.

End Play

0.075 - 0..251 mm

0.003 - 0.010 in.

Opens

2.7° (ATDC)

Closes

82° (ABDC) or 262° (ATDC)

Duration

235°

Centerline

142° (ATDC)

Note: Units are in crank degrees, using 0.1524 mm (0.006 in.) valve lift as the threshold.

Opens

61° (BBDC) or 241° (BTDC)

Closes

10° (ATDC)

Duration

251°

Valve Overlap

N/A

Note: Units are in crank degrees, using 0.1524 mm (0.006 in.) valve lift as the threshold.

Gasket Thickness* (Compressed)

0.52 - 0.62 mm

0.020 - 0.024 in.

Flatness (Head Gasket Surface)

0.09 mm

0.0035 in.

Valve Seat Angle

44.75° ± 0.25° from the valve guide axis

Valve Seat Runout (relative to the valve guide axis) - Intake and Exhaust

0.050 mm

0.002 in.

Intake Valve Seat Width

0.95 - 1.25 mm

0.04 - 0.05 in.

Exhaust Valve Seat Width

1.36 - 1.66 mm

0.054 - 0.065 in.

Guide Bore Diameter (Std.)

6.00 - 6.02 mm

0.236 - 0.237 in.

Valve Guide Height** - Intake and Exhaust

16.05 - 16.55 mm

0.632 - 0.652 in.

*Measured at the fire ring, not at the outer edge

**Measured from cylinder head valve spring seat surface to top of guide

Face Angle

45.25° ± 0.25°

Head Diameter - Intake

37.3 ± 0.100 mm

1.469 ± 0.004 in.

Head Diameter - Exhaust

30.0 ± 0.100 mm

1.181 ± 0.004 in.

Length-Intake (Overall)

115.269 ± 0.23 mm

4.538 ± 0.009 in.

Length-Exhaust (Overall)

115.6 ± 0.23 mm

4.551 ± 0.009 in.

Stem Diameter - Intake

5.968 ± 0.009 mm

0.2350 ± 0.0004 in.

Stem Diameter - Exhaust

5.961± 0.009 mm

0.2347 ± 0.0004 in.

Stem-to-Guide Clearance - Intake (New)

0.023 - 0.061 mm

0.0009 - 0.0024 in.

Stem-to-Guide Clearance - Exhaust (New)

0.030 - 0.068 mm

0.0012 - 0.0027 in.

Stem-to-Guide Clearance-Intake (Max., Rocking Method)

0.29 mm

0.011 in.

Stem-to-Guide Clearance - Exhaust (Max., Rocking Method)

0.37 mm

0.015 in.

Valve Lift-Intake (Zero Lash)

9.0 mm

0.354 in.

Valve Lift-Exhaust (Zero Lash)

10.0 mm

0.394 in.

Valve Stem Tip Height* - Intake

52.4 - 53.5 mm

2.063 - 2.106 in.

Valve Stem Tip Height* - Exhaust

51.8 - 52.9 mm

2.039 - 2.083 in.

*Valve tip to aluminum spring seat boss

Free Length - Intake AND Exhaust (Approx.)

52.5 mm

2.067 in.

Spring Force - Intake AND Exhaust (Valve Closed)

295 ± 13 N @ 40.0 mm

66 ± 3 lbs. @ 1.57 in.

Spring Force - Intake (Valve Open)

699 ± 31 N @ 10.6 mm

150.4 ± 7 lbs. @ 0.4173 in.

Spring Force - Exhaust (Valve Open)

663 ± 30 N @ 9.67 mm

149 ± 6lbs. @ 0.3807 in.

Number of Coils - Intake AND Exhaust

9.35

Wire Diameter - Intake AND Exhaust

3.18 x 3.99 mm (ovate)

0.125 x 0.157 in. (ovate)

Installed Height - Intake AND Exhaust (Spring seat top to bottom of retainer)

40.0 mm

1.575 in.

(Note: At Normal Operating Temperatures)

Pressure @ Curb Idle Speed*

34.7 kPa Min.

5 psi Min.

Pressure @ 600 - 1200 RPM

34.7 (warm) - 958.0 (cold) kPa

5 (warm) - 139 (cold) psi

Pressure @ 1201 - 3500 RPM

206.8 (warm) - 958.0 (cold) kPa

30 (warm) - 139 (cold) psi

Pressure @ 3501 - 6400 RPM

427.0 (warm) - 958.0 (cold) kPa

62 (warm) - 139 (cold) psi

*CAUTION: If oil pressure is zero at idle, DO NOT run engine at 3000 RPM.