Twin Cam 99-upp och Sportster 86-upp

Set of 9 friction plates and 8 tempered steel drive plates

FLHR och FLTR

937" length cylinders

S&S, 96" TO 106" BIG BORE CYLINDER & PISTON KIT. SILVER Framlampa/Headlight Twin Cam 99-upp och SportsterSilver powder coated cylinders. No need to bore out the cases. With 3. 927" bore S&S feels this is the largest bore possible that can be safely used with stock bore crankcase spigots. With a set of S&S . 585 cams, S&S teardrop air cleaner and S&S mufflers the 106" S&S test bike showed a very noticeable 60 to 91 horsepower jump. The forged pistons requires no flywheel re balancing and valve pockets are enlarged to acommodate oversize valves and higher