- Manufacturer: S and S Cycle
S&S Cycle Stainless Steel Valves for S&S Heads - Intake - 1.900in.
- Available for 89cc/91cc and 79cc cylinder heads
- 79cc heads are also found on S&S Twin Cam-style motors and use 1.940in intake valves
- Made in the USA
- For 79cc Heads 1.900in. Head Diameter 0.3107in. Stem Diameter 4.400in. Overall Length
Manufacturer Part Number: 90-2139