7.900" Chromoly Heat-Treated 3/8" 0.080" Wall DNA® One-Piece Pushrods Speedmaster bearings are precision-engineered to

Speedmaster bearings are precision-engineered to provide you with superior quality

These can be used on std or aftermarket plenum manifolds

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The Speedmaster shift selector shaft is built with sturdy

This is our most popular manifold and is showing up on many performance street machines and street rods

7.900" Chromoly Heat-Treated 3/8" 0.080" Wall DNA® One-Piece Pushrods Speedmaster bearings are precision-engineered toGet all of the performance that your engine can produce with these durable pushrods designed especially for high lift cams. Speedmaster pushrods are available in both 5 16 in. and 3 8 in. diameters. They feature . 080 in. wall thickness and are formed from 4130 chromoly steel. These one piece Speedmaster pushrods are heat treated for use with guideplates. They have a minimum wall thickness of . 080 in. to handle higher rpm, plus a black oxide finish.