BIG DOG 117 S&S TOP END HEADS & CYLINDERS 4 1/8" BORE 4 3/8" STROKE POLISHED

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 NEW BIG DOG MOTORCYCLES 117 S&S CYCLES FULLY POLISHED TOP END. INCLUDES NEW HEADS WITH VALVES & DOUBLE SPRINGS. NEW CYLINDERS, 4.928 DECK HEIGHT, 4 1/8" BORE, 4 3/8" STROKE.

THESE WERE STOCK APPLICATION FOR ALL 2005-2011 BIG DOG MOTORCYCLES WITH 117" S&S SUPER SIDEWINDER PLUS ENGINES. INCLUDES MATCHING PISTONS, PISTON RINGS, PINS,CLIPS, & GASKET KIT.

THESE FIT S&S S/A (SPECIAL APPLICATION) ENGINES ONLY. WILL NOT WORK ON HARLEY EVO OR TWIN CAM CASES.