8mm LS Steel & Viton Dual/Single Spring Valve Stem Seals (Suits: 0.4825" Guides) These manifolds require a universal

These manifolds require a universal 4-barrel throttle body

awesome looking setup for your carburetor

these spacers can handle anything your vehicle can dish out

barrel-shaped

while also enhancing its appearance

8mm LS Steel & Viton Dual/Single Spring Valve Stem Seals (Suits: 0.4825" Guides) These manifolds require a universalValve stem seals control the lubrication of the valve stem as it slides in the valve guide. Too little oil causes stem and guide wear. Too much oil increases oil consumption and can cause a buildup of carbon, leading to valve seat damage and early valve grind. Speedmaster valve seals are posi stop seals made from high temperature Viton material for a long lasting seal.