Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1983STEP VAN P20, 5.7 M, AUTOMATIC, 475/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL5.7L V8 - VIN [M]ENGINE SPECIFICATIONSBEARING SPECIFICATIONS
1983 Chevrolet Step Van P20, 5.7 M, Automatic, 475/M40
Bearing Specifications
1983 Chevrolet Step Van P20, 5.7 M, Automatic, 475/M40SECTION Bearing Specifications
MAIN & ROD BEARINGS SPECIFICATIONS
| Application | Inch (mm) | ||
|---|---|---|---|
| No. 1 | |||
| Main Bearings | |||
| Journal Diameter | 2.4484-2.4493 (62.189-62.212) | ||
| Clearance | .002-.008 (.05-.20) | ||
| Thrust Bearing | No. 5 | ||
| Crankshaft End Play | .002-.006 (.05-.15) | ||
| Nos. 2, 3, 4 | |||
| Main Bearings | |||
| Journal Diameter | 2.4481-2.4490 (62.182-62.205) | ||
| Clearance | .001-.002 (.03-.05) | ||
| No. 5 | |||
| Main Bearings | |||
| Journal Diameter | 2.4479-2.4488 (62.177-62.200) | ||
| Clearance | .002-.003 (.05-.08) | ||
| Connecting Rod Bearings | |||
| Journal Diameter | 2.0988-2.0998 (53.310-53.335) | ||
| Clearance | .0013-.0035 (.033-.089) | ||
| Side Play | .008-.014 (.20-.36) | ||
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.