6.300" Chromoly Heat-Treated 5/16" 0.080" Wall DNA® One-Piece Pushrods they have hardened stem tips

they have hardened stem tips for durability and are swirl-polished

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

Slim line design for when space is at a premium

these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers

These retainers are available in a variety of lock angles and sizes to suit your needs

6.300" Chromoly Heat-Treated 5/16" 0.080" Wall DNA® One-Piece Pushrods they have hardened stem tipsGet 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.