Product Description:
Dual Spring Valve Springs, Set.
This is a dual coil spring with damper measuring 1.437" outside diameter and .630 ID. The seat pressure is 140lbs at an installed height of 1.750" and open pressure is 335lbs at 1.150". Max lift is .625". This spring works great for TPIS ZZ9x, ZZ10, ZZ409, and ZZx line of camshafts. Choose 6.SPS500 spring seats and TPIS 6.RET500 steel retainer for the low-cost option or 6.RET505 Titanium retainer for optimum high rpm performance. Sold as a set of 16.
