GM Powerglide Transmission Planetary Gear Set - Short built with the muscle and

built with the muscle and reliability to pull you through any situation

These can be used on std or aftermarket plenum manifolds

Speedmaster ribbed aluminum valve covers feature a classic raised

NOTE: You need Studs and Guide Plates to Run Roller Rockers

The outer case is made from 8620 Chrome-Nickel-Moly steel and the case hardened for long life

GM Powerglide Transmission Planetary Gear Set - Short built with the muscle andSpeedmaster planetary gear sets are ideal for modern big displacement engines. Speedmaster planetary gear sets have an extremely stout output shaft. The forged output shaft from the Speedmaster planetary gear sets offer excellent torsion memory, but it is near impossible to break! Speedmaster planetary gear sets are available in long and short versions. Speedmaster only offers planetary gear sets provide superior torque output for modern high output