S&S Cycle 90-2026 Stainless Steel Valves for S&S Heads - Exhaust - 1.575in.

Available for 89cc/91cc and 79cc cylinder heads. 79cc heads are also found on S&S Twin Cam-style motors and use 1.575in exhaust valves. Made in the USA Available for 89cc/91cc and 79cc cylinder heads. 79cc heads are also found on S&S Twin Cam-style motors and use 1.575in exhaust valves. Made in the USA For 79cc Heads. 1.575in. Head Diameter. 0.3100in. Stem Diameter. 4.551in. Overall Length.