8.700" Chromoly Heat-Treated 3/8" 0.080" Wall DNA® One-Piece Pushrods Speedmaster crankshaft damper spacers are

Speedmaster crankshaft damper spacers are just what you need to install your  429 or 460 damper

They feature lightweight construction with a thick rail for gasket support

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

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

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

8.700" Chromoly Heat-Treated 3/8" 0.080" Wall DNA® One-Piece Pushrods Speedmaster crankshaft damper spacers 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. They have a minimum wall thickness of . 080 in. to handle higher rpm, plus a black oxide finish.