Why rebuild that old stock engine? Upgrade, and replace it with an all-new S&S® T124 engine. Get a 2-year warranty and a lot more power! S&S T124 engines are perfect for applications that require great horsepower and torque. The easy start cams make starting even easier. Features & Benefits Large cooling fins- increase cooling efficiency Gloss black rocker covers, gear cover, tappet blocks and pushrod tubes 2 year warranty Made in USA Specifications 124 cubic inches 10.8:1 compression S&S forged rocker arms S&S gear drive Easy Start 640 cams S&S TC3 cam plate and oil pump *T series engines are not compatible with HD Softail models* Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes.