Howards Performance Dual Racing Valve Springs w/ Damper - 1.540" O.D. 3D MAXpider ALL54180 includes stainless hardware for

ALL54180 includes stainless hardware for mounting bracket to carburetor

Black oxide finish protects from wear and corrosion

This test occurs with minimal operator effort in the short period of time required for the engine to crank over and fire

GM A-Body / B-Body / F-Body / X-Body 1964-74

375 (3/8'') over stock location

Howards Performance Dual Racing Valve Springs w/ Damper - 1.540" O.D. 3D MAXpider ALL54180 includes stainless hardware forEngineered for racing use, springs are precisely coiled and undergo precision heat treating. Sold in sets of 16. The name Howards Cams has been synonymous with high performance camshafts since the 1950s. Howards Cams have always used on track experience to design the most powerful designs. This includes early Top Fuel favorites driven by Jack Chrisman and Larry Dixon Sr. Today we have even a greater group of experienced racers in Circle Track, Drag