For 1990-2009 cars

## Engine Mechanical Specifications 2.5L

Application | Specification
--- | ---
Metric | English
Camshaft

- Bearing Journal OD

24.95-24.97 mm

0.98228-0.98307 in

- Camshaft Cap to Bearing Journal Clearance

0.03-0.071 mm

0.00118-0.00280 in

- Lift - Exhaust

9 mm

0.35 in

- Lift - Intake

10 mm

0.39 in

Connecting Rod Journal

- Diameter, All

47.2-47.212 mm

1.8583-1.8587 in

- Out of Round, Maximum

0.008 mm

0.00031 in

- Rod Bearing Clearance

0.031-0.065 mm

0.00122-0.00256 in

- Rod Bearing Play

0.080-0.260 mm

0.00315-0.01024 in

Crankshaft

- End Play

0.055-0.265 mm

0.002-0.010 in

- Main Bearing Clearance, All

0.019-0.049 mm

0.00075-0.000193 in

- Main Journal - Diameter, All

57.980-58.000 mm

2.2827-2.2835 in

- Main Journal - Radial Run Out, Shave Support on No. 1 and No. 7 Bearings Measured at No. 4 Journal

0.06 mm

0.00236 in

- Service Oversize

None

Cylinder Bore

- Block Face Distortion

0.1 mm

0.003937 in

- Cylinder Bore Taper, Maximum

0.01 mm

0.0004 in

- Diameter

76.994-77.006 mm

3.0313-3.0317 in

- Out of Round, Maximum

0.007 mm

0.00028 in

- Oversize--Measure Replacement Piston Before Re-boring

None

- Piston Protrusion, Maximum

0.132 mm

0.0052 in

Cylinder Head

- Minimum Overall Height After Machining

128.2 mm

5.0472 in

- Overall Height

128.2-128.4 mm

5.04724-5.05512 in

- Valve Guide Height

11.7-12.0 mm

0.46063-0.47244 in

General Data

- Bore Stroke

77 x 89.2 mm

3.03 in x 3.51 in

- Compression Ratio

9.8:1

- Displacement

2 492 cm³

152 in³

- Engine Type

6 Cylinder, In-Line

- Firing Order

1-5-3-6-2-4

Oil Pump

- End Clearance, TIP Clearance

0.02-0.16 mm

0.00079-0.00630 in

- Inner Gear to Crescent

0.02-0.07 mm

0.00079-0.00276

- Outer Gear to Body

0.1-0.19 mm

0.00394-0.00748 in

- Outer Gear to Crescent

0.02-0.07 mm

0.00079-0.00276 in

Piston

- Clearance to Bore

0.015 to 0.027 mm

0.00059 to 0.001063 in

- Diameter

76.973-77.015 mm

3.0304-3.0320 in

Piston Pin

- Clearance: In Piston

0.009-0.019 mm

0.00035-0.00075 in

- Clearance: In Rod

Interference Fit in Rod, -0.010 to -0.025 mm

- Diameter

18.995-19.000 mm

0.74783-0.74803 in

- Length

55.7-56.0 mm

2.193-2.205 in

- Pin Offset

0.6 mm

0.02362 in

Piston Rings

- Oil

0.2-0.7 mm

0.00787-0.02756 in

- Ring, End Gap, Top Compression

0.2-0.35 mm

0.00787-0.01378 in

- Ring, End Gap, Second Compression

0.35-0.5 mm

0.01378-0.01969 in

Sealants and Adhesives

- Coolant Jacket Caps and Plugs, Freeze Plugs

Dry Seal-Lock Coated in Plug

- Cylinder Head Gasket (in places indicated only)

Loctite® 5900, GM P/N 12346286, Canadian P/N 10953472

- Oil Gallery Plug

Loctite® 242, GM P/N 9985283, Canadian P/N 10953489

- Oil Pan Bolts, Oil Pan x Bedplate

Loctite® 5900, GM P/N 12346286, Canadian P/N 10953472

Valve System

- Face Run Out - Maximum, All

0.03 mm

0.00118 in

- Seat Run Out - Maximum, All

0.05 mm

0.00197 in

- Valve Diameter Exhaust

25.7-25.9 mm

1.01181-1.01969 in

- Valve Diameter Intake

30.1-30.3 mm

1.18504-1.19291 in

- Valve Face Angle

90°-90° 40'

- Valve Guide Inside Diameter

5.5-5.512 mm

0.21654-0.21701 in

- Valve Lash Compensators

Hydraulic

- Valve Seat Angle

89.5°-90°

- Valve Seat Width Exhaust

1.4-1.8 mm

0.05512-0.07087 in

- Valve Seat Width Intake

1.0-1.4 mm

0.03937-0.05512 in

- Valve Stem Diameter Exhaust

5.465-5.470 mm

0.21480-0.21535 in

- Valve Stem Diameter Intake

5.465-5.479 mm

0.21516-0.21571 in

## Engine Mechanical Specifications 2.0L

Application | Specification
--- | ---
Metric | English
Camshaft

- Bearing Journal OD

24.95-24.97 mm

0.98228-0.98307 in

- Camshaft Cap to Bearing Journal Clearance

0.03-0.071 mm

0.00118-0.00280 in

- Lift - Exhaust

9 mm

0.35 in

- Lift - Intake

10 mm

0.39 in

Connecting Rod Journal

- Diameter, All

47.2-47.212 mm

1.8583-1.8587 in

- Out of Round, Maximum

0.008 mm

0.00031 in

- Rod Bearing Clearance

0.031-0.065 mm

0.00122-0.00256 in

- Rod Bearing Play

0.080-0.260 mm

0.00315-0.01024 in

Crankshaft

- End Play

0.055-0.265 mm

0.002-0.010 in

- Main Bearing Clearance, All

0.019-0.049 mm

0.00075-0.000193 in

- Main Journal - Diameter, All

57.980-58.000 mm

2.2827-2.2835 in

- Main Journal - Radial Run Out, Shave Support on No. 1 and No. 7 Bearings Measured at No. 4 Journal

0.06 mm

0.00236 in

- Service Oversize

None

Cylinder Bore

- Block Face Distortion

0.1 mm

0.0039 in

- Cylinder Bore Taper, Maximum

0.01 mm

0.0004 in

- Diameter

74.994-75.010 mm

2.9525-2.9531 in

- Out of Round, Maximum

0.01 mm

0.0004 in

- Oversize--Measure Replacement Piston Before Re-boring

None

- Piston Protrusion

0.132 mm

0.0052 in

Cylinder Head

- Minimum Overall Height After Machining

128.2 mm

5.0472 in

- Overall Height

128.2-128.4 mm

5.04724-5.05512 in

- Valve Guide Height

11.7-12.0 mm

0.46063-0.47244 in

- Valve Stem Protrusion

27 mm

1.063 in

General Data

- Bore Stroke

75 x 75.2 mm

2.95 in x 2.96 in

- Compression Ratio

10.2:1

- Displacement

1993 cm³

121.62 in³

- Engine Type

6 Cylinder, In-Line

- Firing Order

1-5-3-6-2-4

Oil Pump

- End Clearance, TIP Clearance

0.02-0.16 mm

0.00079-0.00630 in

- Inner Gear to Crescent

0.02-0.07 mm

0.00079-0.00276

- Outer Gear to Body

0.1-0.19 mm

0.00394-0.00748 in

- Outer Gear to Crescent

0.02-0.07 mm

0.00079-0.00276 in

Piston

- Clearance to Bore

0.01 to 0.032 mm

0.00055 to 0.00126 in

- Diameter

74.970-74.99 mm

2.9516-2.9527 in

- Ring End Gap

- Top

0.2-0.4 mm

0.00787-0.01575 in

- 2nd

0.2-0.4 mm

0.00787-0.01575 in

- Oil

0.2-0.7 mm

0.00787-0.02756 in

Piston Pin

- Clearance: In Piston

0.009-0.019 mm

0.00035-0.00075 in

- Clearance: In Rod

Interference Fit in Rod, -0.010 to -0.025 mm

- Diameter

18.995-19.000 mm

0.74783-0.74803 in

- Length

55.7-56.0 mm

2.193-2.205 in

- Pin Offset (Toward Thrust Side)

0.8 mm

0.0315 in

Sealants and Adhesives

- Coolant Jacket Caps and Plugs, Freeze Plugs

Dry Seal-Lock Coated in Plug

- Cylinder Head Gasket (in places indicated only)

Loctite® 5900, GM P/N 12346286, Canadian P/N 10953472

- Oil Gallery Plug

Loctite® 242, GM P/N 9985283, Canadian P/N 10953489

- Oil Pan Bolts, Oil Pan x Bedplate

Loctite® 5900, GM P/N 12346286, Canadian P/N 10953472

Valve System

- Face Run Out - Maximum, All

0.03 mm

0.00118 in

- Seat Run Out - Maximum, All

0.05 mm

0.00197 in

- Valve Diameter Exhaust

24.9-25.1 mm

0.98032-0.98819 in

- Valve Diameter Intake

29.3-29.5 mm

1.15354-1.16142 in

- Valve Face Angle

90° 25'-90° 55'

- Valve Guide Inside Diameter

5.5-5.512 mm

0.21654-0.21701 in

- Valve Lash Compensators

Hydraulic

- Valve Seat Angle

89.5°-90°

- Valve Seat Width Exhaust

1.4-1.8 mm

0.05512-0.07087 in

- Valve Seat Width Intake

1.0-1.4 mm

0.03937-0.05512 in

- Valve Stem Diameter Exhaust

5.465-5.470 mm

0.21480-0.21535 in

- Valve Stem Diameter Intake

5.465-5.479 mm

0.21516-0.21571 in