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Speedmaster chromoly steel retainers are made from 4140 chromoly and then heat-treated for long life
fuel rail set
They feature extra-thick steel that's double-welded to the ring gear for added strength and anodized for corrosion resistance
but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips
This cooler air charge provides additional power and torque
8.650" Chromoly Heat-Treated 3/8" 0.080" Wall DNA® One-Piece Pushrods Speedmaster chromoly steel retainers areGet 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.
