7.850" Chromoly Heat-Treated 5/16" 0.080" Wall DNA® One-Piece Pushrods not from sand molds

not from sand molds

The Speedmaster shift selector shaft uses an O-ring to prevent leakage from GM TH400 cases

It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs

You can get up to 50 percent more starting power when you pick one of these Speedmaster high-torque mini starters

This is a preloaded unit allowing for a faster reacting unit

7.850" Chromoly Heat-Treated 5/16" 0.080" Wall DNA® One-Piece Pushrods not from sand moldsGet 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.