Dual Valve Spring Kit for Briggs 5hp Flat Head
- 31 lbs. of pressure at 1.00" installed height
- 43 lbs. of pressure at 0.925" installed height
- 60 lbs. of pressure at 0.825" installed height
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Had WEBCAM do an 11 grind for a Tecumseh H35 for fun mini bike use. These springs did the trick to eliminate the coil bind with the high lift. No need to cut upper spring pockets in the block. Bike does an honest 50 mph now ! I'm happy as can be with these springs.