Pistons - Rings - Cylinders

Complete kits include cylinder sleeves, pistons and head gasket 865cc Increases bore and stroke to 90 mm x 67.8 mm (stock is 78 mm x 67.8 mm) Increases compression ratio to 11.0:1 (stock is 9.5:1) Made in the U.S.A FOR CLOSED COURSE COMPETITION USE ONLY...

6061 billet aluminum head breathers replace the OEM plastic parts Dual O-ring for a better seal in the head Unique Labyrinth design to reduce oil pass-through Reduces emissions by lowering the amount of oil being burned Increased durability...