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drive pulley or chain sprocket
made of 100% Nylon-Cordura with Rain-Defender®
last up to 20 times longer than incandescent or halogen lights
steel base without vent holes
KB Performance, 1340cc Evo B.T. piston kit. STD - 84-99 1340cc Evo B.T. (NU) 508458 drive pulley or chain sprocket8. 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.
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