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and large HEIs or DuraSparks
These Speedmaster head bolt bushing kits allow you to use stock or aftermarket head bolts with Speedmaster or other aftermarket cylinder heads
ensuring superior durability and performance
people tend to forget that the yoke is the one piece that ties it all together
each Manifold is 100% pressure tested for leaks to eliminate installation problems
11/32" Viton Valve Stem Seals (Suits: 0.530" Guides) and large HEIs or DuraSparksValve 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.
US$ 250.00
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