KB Performance, 1340Cc Evo B. T. Pop-Up Piston Kit. Std for Harley Davidson

Head type: Dome 0.200. 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. Fits: > 84-99 1340 Evo BT (NU) 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.

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