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 MANUALSBUICK1994ROADMASTER ESTATE WAGON V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON PIN, ENGINE
1994 Buick Roadmaster Estate Wagon V8-350 5.7L
Piston Pin, Engine
1994 Buick Roadmaster Estate Wagon V8-350 5.7LSECTION Piston Pin, Engine
Engine Liter/VIN 5.7L/P
All Measurements Given In Inches Unless Otherwise Specified
Piston Clearance 0.0007-0.0027
Piston Pin Diameter [01] 0.9270-0.9271
Piston Pin To Piston Clearance 0.0004-0.0010
Piston Ring End Gap [02]
Comp. 0.035
Oil 0.065
Piston Ring Side Clearance
Comp. 0.0012-0.0042
Oil 0.002-0.008
[01] Pistons & pins are matched set & should be replaced as an assembly.
[02] Maximum.
All Measurements Given In Inches Unless Otherwise Specified
Piston Clearance 0.0007-0.0027
Piston Pin Diameter [01] 0.9270-0.9271
Piston Pin To Piston Clearance 0.0004-0.0010
Piston Ring End Gap [02]
Comp. 0.035
Oil 0.065
Piston Ring Side Clearance
Comp. 0.0012-0.0042
Oil 0.002-0.008
[01] Pistons & pins are matched set & should be replaced as an assembly.
[02] Maximum.
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.