Trick Flow Valve Spring Upgrade Kit

Valve Springs, Retainers, Single Springs, Steel Retainers, Steel Locks, Single Groove, Kit.
Valve Springs, Retainers, Single Springs, Steel Retainers, Steel Locks, Single Groove, Kit. Number of Springs Per Valve: Single Outside Diameter of Outer Spring (in): 1.470 in. Damper Spring Included: Yes Inside Diameter of Outer Spring (in): 1.075 in. Inside Diameter of Inner Spring (in): 0.803 in. Valve Spring Style: Standard Coated: No Retainers Included: Yes Retainer Material: Steel Locks Included: Yes Lock Style: 7 degree Lock Groove Quantity: 1-groove Lock Material: Steel Notes: Designed to upgrade factory Ford 289-351W cast iron cylinder heads. Kit also includes valve seals and valve spring shims. Performance cams need performance parts. These kits include everything that you need to install a high performance cam. The kits contain valve springs with dampers, chromemoly retainers, valve seals, locks, spring shims, and a spring height gauge. Instructions are also included.