KB Performance, 1340cc Evo B.T. piston kit. +.005" - 84-99 1340cc Evo B.T. (NU) 943648 lightweight but strong construction with

lightweight but strong construction with powder coated finished steel frame and wheel cups

Designed for use with OEM and most aftermarket calipers

Used to easily remove and install the wire type wristpin clips without hassle

Foamet gasket material has an aluminum base with a nitrile synthetic rubber foam layer on both sides

Designed to fit OEM style valve seals

KB Performance, 1340cc Evo B.T. piston kit. +.005" - 84-99 1340cc Evo B.T. (NU) 943648 lightweight but strong construction with8. 5: 1 CR. Piston weight 350gr. Piston pin weight 97gr. Head type: Flat top. Dome +1. 5cc. Compression height 1. 375". Bore 3. 4980". Stroke 4. 250" (4 1 4"). Rod length 7. 440". Cyl. length 5. 550". Comes with T6 heat treated 390 Hypereutectic cast pistons with 16% silicone levels which enables running a very tight clearance for longevity and hardly any piston noise. Note: Top compression ring will need additional clearance. See instructions.