The "Yellow Stripe" spring is stronger than the Green Stripe spring, and slightly more durable than the Red Stripe spring. These springs on average will lose less than .2 lbs of spring pressure...
These Box Stock class valve springs have been specially treated to prolong pressure retention. The pressure loss from fatigue is about half of what is seen...
The "Red Stripe" spring is the strongest 10.8 lb spring on the market. This Heavy Duty spring will allow the engine builder to custom fit their spring to their particular build. Having been through...
Spring for Modified BSP 196cc Clone, Honda GX200, Predator 212cc and Yamaha F200 - Sold SeparatelyThis is a great valve spring for modified GX200, Cone and Predator engines that is...