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1D-338 Engine Mechanical:
Valve Face Width - Exhaust
Valve Face Width - Intake
Valve Head Diameter - Exhaust
Valve Head Diameter - Intake
Valve Installed Height
Valve Length - Exhaust
Valve Length - Intake
Valve Seat Angle - Seating Surface
Valve Seat Angle - Relief Surface
Valve Seat Angle - Undercut Surface
Valve Seat Runout - Maximum
Valve Seat Width - Exhaust Seating Surface
Valve Seat Width - Exhaust Relief Surface
Valve Seat Width - Intake Seating Surface
Valve Seat Width - Intake Relief Surface
Valve Stem Diameter - Exhaust
Valve Stem Diameter - Intake
Valve Stem-to-Guide Clearance - Exhaust
Valve Stem-to-Guide Clearance - Intake
Valve Lifters
Valve Lifter Diameter
Valve Lifter-to-Bore Clearance
Rocker Arms
Valve Rocker Arm Ratio
Valve Rocker Arm Roller Diameter
Valve Springs
Valve Spring Coil Thickness
Valve Spring Diameter - Inside Top
Valve Spring Diameter - Outside Top
Valve Spring Diameter - Inside Bottom
Valve Spring Diameter - Outside Bottom
Valve Spring Free Length
Valve Spring Installed Height - Closed
Valve Spring Installed Height - Open
Valve Spring Load - Closed
Valve Spring Load - Open
Valve Spring Total Number of Coils
Sealers, Adhesives, and Lubricants
Application
Camshaft Prelube
Coolant and Oil Plug Threads
Crankshaft Prelube
Engine Oil
Oil Pan, Engine Front Cover, Crankshaft Rear Oil Seal
Housing, Expansion Plugs
Application
Specification
Metric
2.750 mm
2.180 mm
30.470-30.730 mm
36.830-37.090 mm
35.23-36.69 mm
97.110 mm
101.230 mm
0.050 mm
1.400-1.800 mm
0.700-0.900 mm
1.000-1.400 mm
0.500-0.700 mm
5.945-5.965 mm
5.955-5.975 mm
0.035-0.075 mm
0.025-0.065 mm
11.489-12.000 mm
0.037-0.041 mm
17.750-17.800 mm
3.250 x 3.900 mm
12.090-12.590 mm
20.140 mm
17.950-18.450 mm
26.000 mm
42.050-44.850 mm
35.000 mm
24.000 mm
247-273 N
598-662 N
Type of Material
United States
Lubricant
Sealant
Lubricant
5W-30 Oil
Sealant
English
0.1083 in
0.0858 in
1.1996-1.2098 in
1.4500-1.4602 in
1.3870-1.4445 in
3.8232 in
3.9854 in
45 degrees
30 degrees
60 degrees
0.0020 in
0.0551-0.0709 in
0.0276-0.0354 in
0.0394-0.0551 in
0.0197-0.0276 in
0.2341-0.2348 in
0.2344-0.2352 in
0.0014-0.0030 in
0.0010-0.0026 in
0.4523-0.4724 in
0.0015-0.0016 in
1.68 to 1
0.6988-0.7008 in
0.1280 x 0.1535 in
0.4760-0.4957 in
0.7929 in
0.7067-0.7264 in
1.0236 in
1.6555-1.7657 in
1.3779 in
0.9449 in
56-61 lb
134-149 lb
7.1
GM Part Number
Canada
12345501
992704
12346004
10953480
1052367
992869
12345610
993193
12378521
88901148
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