There’s no replacement for displacement or value: These RevTech 4-inch big bore cylinders with forged, coated KB pistons and Cometic gaskets increase the displacement of an 88-inch twin cam to 97 inches and raise a 96-inch Twin Cam to a whopping 106 inches with no case machining.
4-inch Cylinders with machined fin edges in black wrinkle or natural finish
KB forged pistons with anti-friction skirt coating
Cometic multi-layer steel head gaskets
Retail Price: $664.99