S&S Cycle 99-05 BT Super Stock 79cc Cylinder Head Kit - Wrinkle Black

S&S Cycle is well-known for building performance engine components for Harley-Davidson motorcycles. This Super Stock cylinder head kit is designed for 1999 through 2005 Big Twin engines, fitting stock crankcases. While it works well with stock displacement, it's an excellent choice for engines up to 110 cubic inches, especially those with larger stroker or big bore setups. The 79cc combustion chamber offers a slightly higher compression ratio than stock, which helps performance cams work more effectively.

These heads feature large 1.940-inch intake and 1.575-inch exhaust valves. This sizing helps maintain port velocity for strong low and midrange response, while still providing ample airflow for stock and slightly larger engines to perform at their best. The included high-performance valve springs are rated for camshafts with up to .585-inch lift. You can use your stock rocker boxes, exhaust, and intake manifolds, making installation more straightforward. The wrinkle black powder coat finish is a nice touch, matching the look of many stock black engine components.

This kit is compatible with a wide range of Harley-Davidson models from 1999 to 2005, including popular bikes like the Road King, Electra Glide, and Fat Boy. It's important to note that these heads are not CARB approved and cannot be shipped to California.