S&S Cycle 84-99 BT Super Stock Cylinder Heads - Polished Aluminum Finish

If you're building a high-performance S&S T124 engine for your early production 1999-2006 Harley-Davidson Big Twin, these Super Stock cylinder heads are a critical component. They are specifically designed to work with the S&S cylinder stud pattern found on their special application crankcases, ensuring a solid foundation for your engine build. These heads are engineered to help your big motor breathe easier, allowing it to produce serious power.

You'll notice the substantial 2.000-inch intake valves and 1.605-inch exhaust valves, paired with S&S's own port designs. This combination is built to supply a generous amount of air, which is essential for these larger displacement engines to perform at their best. They also come machined for both electric and manual compression releases, giving you flexibility depending on your setup. The manifold mounting surface is machined to stock specifications, meaning you'll need a manifold or throttle body that matches stock height for engines that aren't stock height. For those looking to run aggressive camshafts, the included S&S High Performance valve springs are rated to handle up to .650-inch lift, and these heads are compatible with stock rocker boxes, exhaust, and intake manifolds.

These cylinder heads feature a polished aluminum finish that looks sharp and complements the overall aesthetic of a performance engine. It's important to note that these heads are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for specific details regarding compatibility with your exact engine configuration and any required additional components.