Heads are found on S&S Twin Cam-style motors and use 2.000" intake valves and 1.605" exhaust valvesReplacement for S&S headsMade in the USA
For 89 cc/91 cc S&S Heads.
Heads are found on S&S Twin Cam-style motors and use 2.000" intake valves and 1.605" exhaust valvesReplacement for S&S headsMade in the USA
For 89 cc/91 cc S&S Heads.
Made in the USAReplacement for '66-'84 valves
0.030" smaller than stock.
Smaller exhaust valve head allows high TDC lifts without valve-to-valve interference as well as improved flow.
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