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 MANUALSCHEVROLET2007IMPALA V8-5.3LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER BLOCK ASSEMBLYPISTON PINSPECIFICATIONS
2007 Chevrolet Impala V8-5.3L
Piston Pin: Specifications
2007 Chevrolet Impala V8-5.3LSECTION Specifications
Pin - Piston Pin Clearance-to-Piston Pin Bore - Production 0.002-0.01 mm 0.00008-0.00004 in
Pin - Piston Pin Clearance-to-Piston Pin Bore - Service 0.002-0.015 mm 0.00008-0.00006 in
Pin - Piston Pin Fit in Connecting Rod Bore - Production 0.007-0.02 mm 0.00027-0.00078 in
Pin - Piston Pin Fit in Connecting Rod Bore - Service 0.007-0.022 mm 0.00027-0.00086 in
Pin - Piston Pin Diameter 23.997-24.0 mm 0.9447-0.9448 in
Pin - Piston Pin Clearance-to-Piston Pin Bore - Service 0.002-0.015 mm 0.00008-0.00006 in
Pin - Piston Pin Fit in Connecting Rod Bore - Production 0.007-0.02 mm 0.00027-0.00078 in
Pin - Piston Pin Fit in Connecting Rod Bore - Service 0.007-0.022 mm 0.00027-0.00086 in
Pin - Piston Pin Diameter 23.997-24.0 mm 0.9447-0.9448 in
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.