Silvolite Piston Set, 1731.030

Silv-O-Lite Piston - Buick 231ci/3.8L (V6)

3.050" diameter recess.215" deep. Non-turbo.

Sold As: Sold as a set, priced per set

Engine Manufacturer: Buick

Engine Family: GM V6

VIN Code: A

OE Cross Reference: 1394558, 1249538, 12157377, 25501423, 25518053, 25527178

Engine Displacement (Liters): 3.8

Engine Displacement (cubic inches): 231

Piston Head Type: Dish

Crown (cc): +24.5cc

Compression Ratio: 7.6, 8.0, 8.5

Top Land: 0.305

Pin Type: Press

Compression Height IN: 1.805

Piston Pin Outside Diameter IN: 0.94

Piston Pin Outside Diameter MM: 23.9

Oil Ring Thickness IN: .1875"

Year Range: 1975-1987

Compression Height MM: 45.8

Bore Diameter MM: 96.5

Top Compression Ring Thickness IN: .0781"

Bore Diameter IN: 3.8

Second Compression Ring Thickness IN: .0781"

Oversized: Yes

Crown Type: DISH

Oversize: .030"

Pin Configuration: Offset

Piston Material: Cast 332 Alloy

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

Base Number: 1731

Pin Number: 0940x302A

Year From: 1975

Year To: 1987

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