8.900" Chromoly Hardened Steel 5/16 +0.080" Wall One Piece Pushrods (16/Set) This feature is sometimes called

This feature is sometimes called an air gap design

Although the GM heads are good pieces

you will need to make sure that your ride has 17 in

If you want to run a roots style blower but you do not want a broken crank than you must employ this Speedmaster Billet Crank Support

they don't require any special tools for installation

8.900" Chromoly Hardened Steel 5/16 +0.080" Wall One Piece Pushrods (16/Set) This feature is sometimes calledGet 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.