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

This kit includes a pair of S&S Cycle Super Stock cylinder heads, finished in a wrinkle black powder coat to match your stock black engine components. These heads are built for 1999 through 2005 Harley-Davidson Big Twin engines, fitting stock displacement engines but also ideal for larger stroker or big bore builds up to 110 cubic inches. The 79cc combustion chamber offers a slightly higher compression ratio than stock, which helps most performance camshafts work more effectively. You'll find they are machined to accept S&S compression releases, making starting easier.

The large 1.940-inch intake valves and 1.575-inch exhaust valves are designed to maintain port velocity for solid low and midrange response, while still providing enough airflow for stock and slightly larger engines to perform at their best. The included S&S High-performance valve springs can handle camshafts with up to .650-inch lift. These heads are compatible with your stock rocker boxes, exhaust, and intake manifolds, simplifying installation. This is a solid option for riders looking to improve their engine's breathing and overall performance.