Howards Performance Dual Racing Valve Springs w/ Damper - 1.540" O.D. 3D MAXpider GM A-Body / B-Body /

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

Part Number: 120-172

Epoxy Over Mold And Brass Contacts With Balanced Rotor

This O2/Wideband sensor is a direct replacement for the wideband O2 sensor that comes with all XFI 2

Howards Performance Dual Racing Valve Springs w/ Damper - 1.540" O.D. 3D MAXpider GM A-Body / B-Body /Engineered 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