These high compression pistons feature a 7cc raised dome to achieve a compression ratio of 11:1 (from 9.5:1). Higher compression is a key factor in increasing performance.
Key Features
Brand Manufactured by S&S Cycle
Category Engine Components
Type Piston Sets - Powersports
Specifications
Length 8.5 in
Width 4.25 in
Height 4.25 in
Weight 2 lbs
Rider Benefits
These high compression pistons feature a 7cc raised dome to achieve a compression ratio of 11:1 (from 9.5:1). Higher compression is a key factor in increasing performance.
Stock Bore X Stroke = 78 x 67.8mm, S&S 650 HC Kit = 78 x 67.mm
Stock Compression Ratio = 9.5:1, S&S 650 HC Kit = 11.0:1
Please review manufacturer details to ensure proper fitment before ordering.