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These Speedmaster air filter bases are just what you need to build that custom air cleaner assembly
8" diameter ring gear and removable pinion support
Discover the zenith of fuel injection innovation with our enhanced Downdraft 8 Stack EFI Intake Manifold System
Speedmaster's velocity stacks are chrome plated with a steel mesh top
This allows for an efficient fluid transfer
GM Powerglide / TH400 Big Shaft Stator Tube Kit These Speedmaster air filter basesUpgrade your GM Powerglide or TH400 for extreme horsepower applications with this big shaft stator tube kit. Designed for use with 1 1 8" diameter, 35 spline input shafts, this heavy duty tube is ideal for high performance builds demanding maximum strength and durability.
