T143 Engines for 1999-'17 Big Twins All joking about size aside, it does matter. The S&S T143 Long Block engine for Harley- Davidson® models is the largest S&S engine that will fit in a …

S&S T143 engines are now available for 2006-17 Harley-Davidson® Dyna® models. (Silver finish and other displacements available by special order). The crankcases of these engines are …

If you want to build the baddest bike on the block, you need a T143! The S&S T143 Long Block engine is the largest S&S engine that will fit in a stock Harley- Davidson chassis. At double the …

T143 Long Block Engine - Black - Touring | Dyna Fits in stock chassis, no cutting or frame modifications necessary, S&S B3 cylinder heads CNC-machined with two-bolt exhaust …

The S&S T143 long block engine is the largest S&S engine that will fit in a stock Harley Davidson chassis. At double the HP of a stock motor, the power of the T143 requires technical expertise …

Unleash unparalleled power and performance in your Harley Davidson with the S&S Cycles T143 Long Block Twin Cam Engine. Designed to fit within the stock chassis of '99-'17 Harley models …

T143-specific or custom exhaust required. Fits in stock chassis, no cutting or frame modifications necessary. Does not include carb/intake or ignition system. Must be purchased separately. …

The S&S T143 Long Block engine stands as the pinnacle of power for Harley-Davidson motorcycles, crafted for those aiming to push the limits of performance within a stock chassis. …

Fits 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 …

S&S T143 engines are now available for 2006-17 Harley-Davidson® Dyna® models. (Silver finish and other displacements available by special order). The crankcases of these engines are …