S&S Cycle 90-1497

S&S^® Super Stock^® o-ring style cylinder heads for 1966-'78 HD^® big twins feature a stock like appearance, but flow much better than stock heads. Heads come assembled with premium valves and S&S^® valve springs that can handle cams with lifts up to .590". These heads are machined for one spark plug per head and accept 3-5/8" bore cylinders, and are original equipment on S&S^® SH-Series engines, and are a great upgrade for stock shovelheads. Rocker boxes are fastened with 5/16"-18 cap screws instead of the stock studs and nuts. KIt includes front and rear cylinder head assemblies, rocker box gaskets, copper head gaskets, exhaust gaskets, hardware, and instructions. Natural aluminum finish. Install Instructions Download

FITMENT DISCLAIMER

Fitment information is provided as a general reference only and is not guaranteed for any motorcycle, whether stock or modified. Compatibility may vary by year, model, and individual configuration.

Customers are responsible for verifying fitment prior to purchase. House of Harley-Davidson assumes no liability for purchases made based on incorrect or unverified fitment information.

Please contact our Parts Department with any questions before ordering at 414-282-2211