Silvolite Piston Set, 1631.040

Silv-O-Lite Piston - Oldsmobile 455ci/7.5L (V8)

2.940" diameter recess.120" deep.

Sold As: Sold as a set, priced per set

Engine Manufacturer: Oldsmobile

Engine Family: Oldsmobile V8

OE Cross Reference: 400561

Engine Displacement (Liters): 7.5

Engine Displacement (cubic inches): 455

Piston Head Type: Dish

Crown (cc): +14.5cc

Compression Ratio: 10.1

Top Land: 0.245

Pin Type: Press

Oil Ring Thickness IN: .1875"

Bore Diameter IN: 4.125

Oversized: Yes

Bore Diameter MM: 104.8

Top Compression Ring Thickness IN: .0781"

Compression Height IN: 1.72

Piston Pin Outside Diameter MM: 24.9

Piston Pin Outside Diameter IN: 0.98

Crown Type: DISH

Second Compression Ring Thickness IN: .0781"

Compression Height MM: 43.7

Oversize: .040"

Year Range: 1968-1976

Oversizes: STD, .020, .030, .040, .060

Year From: 1968

Base Number: 1631

Year To: 1976

Pin Configuration: Offset

Pin Number: 0908x300B

Piston Material: Cast 332 Alloy

Ring Pack: 5/64, 5/64, 3/16