Engine Specs - S54 Rod Bearings
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Contents
Bearings Specification, Dimensions, Clearance
OEM 439/440 Bearings
Production and Composition
The composition is a standard babbit lead/copper bearing. They are soft faced, and easy on the crankshaft.
Manufacturer: Clevite. Clevite logo is seen on the back of the bearings.
Composition: Trimetal lead/copper
| Bearing
Dimensions (439/440 Bearings) |
Metric Dimensions | SAE (Inch) Dimensions |
| Bearing
Width (Blue, Red) |
15.8140 mm | 0.62260 inch |
| Nominal
Bearing Thickness (Top, Blue) |
1.9990 mm | 0.07870 inch |
| Nominal
Bearing Thickness (Bottom, Red) |
1.9939 mm | 0.07850 inch |
| Bearing
Thickness Variance (Top, Blue) |
1.9964 - 2.0041 mm | 0.07860 - 0.07890 inch |
| Bearing
Thickness Variance (Bottom, Red) |
1.9939 - 1.9939 mm | 0.07850 - 0.07850 inch |
| Bearing Tolerance (Top, Blue) | -0.0025 - 0.0051 mm | -0.00010 - +0.00020 inch |
| Bearing Tolerance (Bottom,
Red) |
0.0000 - 0.0000 mm | 0.00000 - +0.00000 inch |
