750259 2 1 16 Opening Use with S S and Other 2 1 16 52MM Manifolds

These S&S Cycle insulator blocks are designed to prevent heat transfer from the cylinder heads to the carburetor, ensuring a cooler and denser fuel charge. Featuring a 2 1/2-inch center-to-center mounting hole pattern, these spacers are compatible with various butterfly-type carburetors including Tillotson, Bendix, and Keihin units. Available in 1 7/8-inch and 2 1/16-inch openings, they serve as a vital component for maintaining consistent engine performance under high-temperature conditions. Each spacer is supplied with a matching O-ring to ensure a secure, leak-free seal at the intake manifold.