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The successful formula of offering a complete engine drive accessory kit has now been applied to the Serpentine with Speedmaster pulley systems
The Speedmaster Supercharger Idler Pulley Nut is a high-performance component designed to ensure the optimal functioning of your supercharger system
pulling trucks
Fits big block Chevy rectangular port cylinder heads on standard deck blocks
For 3" tube diameters
8.900" Chromoly Heat-Treated 5/16" 0.080" Wall DNA® One-Piece Pushrods The successful formula of offeringGet 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.
