AMERICAN IRONHORSE S&S 4 1/8" BORE BLACK FRONT HEAD 111 117 124 AIH BIG DOG

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                                                                    FRONT HEAD ONLY
 NEW AMERICAN IRONHORSE S&S CYCLES BLACK POWDER COATED FRONT CYLINDER HEAD. P/N 90-1050 F. 4 1/8" BORE FOR AMERICAN IRONHORSE 111, 117, & 124 ENGINES. THESE WERE STOCK APPLICATION FOR ALL STOCK IRONHORSE MODELS WITH 4 1/8" BORE S&S SUPER SIDEWINDER PLUS ENGINES. (111" 117" 124").
THESE FIT S&S S/A (SPECIAL APPLICATION) ENGINES ONLY. WILL NOT WORK ON HARLEY EVO OR TWIN CAM CYLINDERS.
THESE HAVE PROVISIONS FOR COMPRESSION RELEASES.

WILL FIT ALL BIG DOGS 05+ WITH 117!