T143 Long Block EngineFits in stock chassis, no cutting or frame modifications necessary S&S B3 cylinder heads CNC-machined with two-bolt exhaust flanges S&S 635 easy-start gear drive cams and 1.725:1 rocker arms for .674" total lift S&S Super Stock™ T2 crankcases with reed breather valve three-piece flywheels S&S high-flow oil pump and cam cover S&S premium high-performance tappets Made in the U.S.A. Does not include carb/intake or ignition system. Must be purchased separately T143-specific or custom exhaust required. Oil line installation kit required. Oil line installation kit not required.