7.400" Chromoly Hardened Steel 5/16 +0.080" Wall One Piece Pushrods (16/Set) These water pump pulleys are

These water pump pulleys are made from a 356 aluminum alloy that is heat-treated to T-6 specs

and their quality construction and superior materials will help to protect your vital engine parts from the harmful effects of friction

This is a preloaded unit allowing for a faster reacting unit

beat-up OEM cast iron yoke

Nitrous/injector bosses

7.400" Chromoly Hardened Steel 5/16 +0.080" Wall One Piece Pushrods (16/Set) These water pump pulleys 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.