1270cc Cylinder and Piston Conversion Kit Black - V-Twin 11-1337 - Evolution Sportster 1986-2003

Big bore cylinder kit for 1200-1270cc conversion on Sportster models.

Increase your horsepower with our V-Twin 1270cc big bore conversion kit. Our kit includes 2 black highlighter finished cylinders pistons and rings. Cylinders are pre-fitted with a forged piston set with moly rings ready to install. No machining necessary. *NOTE: Kit can be used for conversion of 1200cc models to 1270cc only. The finish bore is 3.5995 inch to 3.6005 inch. MC forged pistons have a teflon coated top to aid in a more complete combustion. Final cylinder is done in our 6 position Rottlier honing machine. *NOTE: Includes flat piston set specifically for 1200cc models.

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