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valve timing
6" axle uses a slightly larger 8
Speedmaster water pump spacers
As the horsepower in your performance vehicle goes up so does the strength of the read end housing
7.220" Chromoly Heat-Treated 5/16" 0.080" Wall DNA® One-Piece Pushrods valve timingGet 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.
