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Great single coil spring for Modified BSP 196cc Clone, Honda GX200, Predator Non Hemi 212cc and Yamaha F200. Springs measure 36lbs at .850 and coil bind at .450. RPM range...
Valve head measures 32mm, total length is 2.650" (+/-.004). The stock valve seat will need to be removed and the seat #6149 must be installed. Top quality stainless steel with automotive style...
Designed for high-lift cams in high RPM engines using stainless steel valves and billet retainers. These are extremely heavy duty springs for highly modified applications. May require cylinder head...