Howards Valve Spring Set 98441; Max Effort Dual 175 lbs @ 1.750 in., 1.437 OD

Howards Cams 98441 Max Effort Dual 1.437 Valve Spring Set

Roush 8000 Solid Roller Double Valve Springs, 1.545" OD, 160lbs @ 2", 16 Pcs

Howards for Max Effort Dual Valve Springs 1.500 98541

Howards Racing Components 98113 Beehive Beehive 1.280 Valve Spring Howards Cams

Roush Solid Roller Double Valve Spring Kit, 1.545" OD, 160lbs @ 2.000", 16Pcs

Manley 1560 Double Valve Springs, 1.560" OD, 180lbs @ 1.850" Set of 16, #56

Howards Cams Performance Street/Strip Valve Spring 98443