S&S Cycle 84-99 Performance Replacement Low Compression 76cc Cylinder Heads - Natural

These S&S Cycle 76cc cylinder heads are built for 1986 through 1999 Harley-Davidson Evolution Big Twin engines. They are designed to work with stock-style flat-topped pistons and offer a slight compression increase, which pairs well with most performance camshafts. The larger intake valves, measuring 1.900 inches, and 1.575-inch exhaust valves allow for increased airflow while keeping port velocity up, contributing to good low and midrange engine response.

The high-lift valve springs included with these heads can accommodate camshafts with lifts up to .585 inches. They are designed to fit with your stock intake manifolds, exhaust systems, and even temperature sensors if your EFI model is equipped with them. The natural aluminum finish gives a clean, classic look to your engine build.

When installing these heads, you'll want to ensure compatibility with your specific piston type; they are intended for stock-style flat-topped pistons. The 76cc combustion chamber size is a key factor in achieving improved compression for better performance, especially when combined with the right camshaft profile. This setup is a solid choice for riders looking to enhance their engine's breathing and overall performance without drastically altering the stock configuration.