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.
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HOMESERVICE MANUALSCHEVROLET1987BLAZER FULL SIZE V8-379 6.2L DSLREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON, ENGINE
1987 Chevrolet Blazer Full Size V8-379 6.2L DSL
Piston, Engine
1987 Chevrolet Blazer Full Size V8-379 6.2L DSLSECTION Piston, Engine
| Piston Diameter Standard Note: Measured at 90 degree angle to piston pin | Bohn Pistons | Cylinders 1-6 | 3.9724-3.9744 |
| Cylinders 7&8 | 3.9719-3.9739 | ||
| Zollner Pistons | Cylinders 1-6 | 3.9175-3.9735 | |
| Cylinders 7&8 | 3.9709-3.9730 | ||
| Piston Clearance | Bohn Pistons | Cylinders 1-6 | 0.0035-0.0045 |
| Cylinders 7&8 | 0.0040-0.0050 | ||
| Zollner Pistons | Cylinders 1-6 | 0.0044-0.0054 | |
| Cylinders 7&8 | 0.0049-0.0059 |
RENDER: 1.0x
NO RELATED
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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.