1270cc Cylinder and Piston Conversion Kit Silver
Description
Big bore cylinder kit for 1200-1270cc conversion on Sportster models. Kit includes head gasket and has a compression ratio of 10.1. Increase your horsepower with our V-Twin 1270cc big bore conversion kit. Our kit includes 2 silver 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 the conversion of 1200cc models to 1270cc only. The finish bore is 3.5995" to 3.6005". MC forged pistons have teflon coated tops to aid in a more complete combustion. Final cylinder is done on our 6 position Rottlier honing machine.
*NOTE: Includes flat piston set specifically for 1200cc models.
Specifications
- V-Twin number
- 11-1273
- Manufacturer
- V-Twin
- Sold as
- 1 - KIT
- Origin
- Imported
- 2026 catalogue pages
- 871
Goes with this part
V-Twin lists these alongside 11-1273 — replacements, the parts commonly fitted at the same time, and supersessions. Check the fitment on each before ordering.