Silvolite Piston Set, 1525.040

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

Flat top with 4 valve reliefs.

Sold As: Sold as a set, priced per set

Engine Manufacturer: Pontiac

Engine Family: Pontiac V8

OE Cross Reference: 478812, 485804, 499052

Engine Displacement (Liters): 7.5

Engine Displacement (cubic inches): 455

Piston Head Type: Flat

Crown (cc): +7cc

Compression Ratio: 8

Top Land: 0.26

Pin Type: Press

Piston Pin Outside Diameter MM: 24.9

Top Compression Ring Thickness IN: .0781"

Bore Diameter MM: 105.4

Piston Pin Outside Diameter IN: 0.98

Compression Height IN: 1.48

Bore Diameter IN: 4.15

Base Number: 1525

Second Compression Ring Thickness IN: .0625"

Compression Height MM: 37.6

Oil Ring Thickness IN: .1875"

Pin Configuration: Offset

Year To: 1976

Oversize: .040"

Crown Type: FLAT TOP

Ring Pack: 5/64, 1/16, 3/16

Year Range: 1970-1976

Year From: 1970

Piston Material: Cast 332 Alloy

Oversized: Yes

Pin Number: 0980x308A

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