Engine Brand: Oldsmobile
Engine Family: Big Block Oldsmobile
Engine Size: 425
With/Without Rings: Includes Rings
Cylinder Bore Size: 4.030 in - 102.28 mm
Ring Width: 1/16-1/16-3/16"
Compression Height: 1.625
Pin Diameter: .980
Connecting Rod Length: 7.000 in
Crankshaft Stroke: 3.975 in
Piston Series: 3 - FX Series
Alloy: Forged 2618
Cylinder Head: Oldsmobile
TDC Assembly Height: 10.6125
Piston Top Aprox. Comp. Ratio:
Chamber | Comp Ratio |
---|---|
72cc | 10 to 1 |
75cc | 9.72 to 1 |
77cc | 9.54 to 1 |
Engine Brand: Oldsmobile
Engine Family: Big Block Oldsmobile
Engine Size: 425
With/Without Rings: Includes Rings
Cylinder Bore Size: 4.030 in - 102.28 mm
Ring Width: 1/16-1/16-3/16"
Compression Height: 1.625
Pin Diameter: .980
Connecting Rod Length: 7.000 in
Crankshaft Stroke: 3.975 in
Piston Series: 3 - FX Series
Alloy: Forged 2618
Cylinder Head: Oldsmobile
TDC Assembly Height: 10.6125
Piston Top Aprox. Comp. Ratio:
Chamber | Comp Ratio |
---|---|
72cc | 10 to 1 |
75cc | 9.72 to 1 |
77cc | 9.54 to 1 |