S&S Cycle 99-05 BT Super Stock 91cc Cylinder Heads - Wrinkle Black

If you're looking to get more airflow into your late model S&S T111 long block engine, these Super Stock cylinder heads are a solid choice. Designed specifically for 1999-2005 Harley-Davidson big twins, they're built to help your engine breathe better and perform stronger. The larger 2.000-inch intake valves and 1.605-inch exhaust valves, combined with S&S's specially designed ports, ensure that plenty of air can get into your big motor, which is crucial for making good power.

One of the thoughtful details here is how the manifold mounting surface is machined. It's specially set up to account for the slightly shorter cylinders found on these engines, meaning you can use a stock-length manifold or throttle body without issue. This makes installation smoother. Inside, the high-performance valve springs are rated to handle camshafts with up to .650-inch lift, giving you flexibility if you decide to upgrade your camshafts down the road. Plus, they're designed to work with your stock rocker boxes, exhaust, and intake manifolds, simplifying the swap.

The wrinkle black powder coat finish on these heads is a nice touch, too. It's designed to match the look of your stock black engine components, so you can maintain a cohesive appearance while improving performance. These are well-built heads that offer a significant airflow improvement for your S&S T111 engine.