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5" diameter ring gear and the GM 8
using an O-ring to prevent leakage
so it is not necessary to change to a 10 degree retainer
greater resistance to tooth shear
These Speedmaster supercharger manifolds are aluminum constructed and suitable for competition or street use
9.550" Chromoly Hardened Steel 3/8 +0.080" Wall One Piece Pushrods (8pcs) 5" diameter ring gear andGet 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.
