GM Turbo 700R4 Aluminum Tailhousing with Needle Bearing The Speedmaster throttle body begins

The Speedmaster throttle body begins as a billet of 6061- T6 aluminum for superior quality and is introduced to a state-of-the-art CNC machine

you will need housing ends to complete your project

while blocking out dust

they are made from 5140 Chromoly steel

These Speedmaster polished aluminum tops are designed to replace the OEM top without alterations

GM Turbo 700R4 Aluminum Tailhousing with Needle Bearing The Speedmaster throttle body beginsThese Speedmaster tailshaft housings are designed five times stronger and more ridged than stock because they are made from aircraft grade aluminum alloy, thicker walls, and more gusseting than any other manufacturers. And they also include a roller bearing at the end of the tailshaft which if lubricated by our reworked passages for the yoke and rear bearing assembly.