APPLICATION:1948-1978 74" FL,FLHFL 1941-1977FX 1971-1977DETAILS:Wiseco piston set is standard 3-7/16" bore. Pistons have a compression ratio of 9:1 and includes rings. **Note:Run engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears, in order to properly break-in new pistons and rings.
UOM: KIT