+.010in. Pistons with 8.5:1 Compression Ratio. Fits Big Twin 1941-1979 with 1200cc Engine.
Features & Benefits:-* Bore=3.447in.* Stroke = 3.969in.* Hypereutectic Alloy is a cast 16% silicon content material.* Perfect for air cooled engines.* Low thermal expansion rate = tighter piston-to-cylinder clearance.* Complete kit includes: two pistons, rings, wrist pins and clips.* Replaces OEM # 22143-55* Replaces OEM # 22143-74Tech Tips:-* Follow Ring End Gap & Piston to…
