7.800" Chromoly Heat-Treated 3/8" 0.080" Wall DNA® One-Piece Pushrods While the GM 8

While the GM 8

6 pinion gear

These housings can be flipped 180 degrees for either a left or right outlet location

it has a square bore carb flange instead of a spread bore

increases valve train life dramatically

7.800" Chromoly Heat-Treated 3/8" 0.080" Wall DNA® One-Piece Pushrods While the GM 8Get 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.