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These Speedmaster head bolt bushing kits allow you to use stock or aftermarket head bolts with Speedmaster or other aftermarket cylinder heads
you need to long no further than Speedmaster's billet aluminum ignition coil brackets
NOTE: You need Studs and Guide Plates to Run Roller Rockers
each Manifold is 100% pressure tested for leaks to eliminate installation problems
Provides very positive shifts for high performance street use or for competitive events
11/32" Viton Valve Stem Seals (Suits: 0.530" Guides) These Speedmaster head bolt bushingValve 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.
