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The Speedmaster quick spool system is a pressure relief system for the Turbo 400
If your TH400 transmission is being used in high power applications
These Speedmaster chrome air cleaner tops are designed to replace the OEM top without alterations
This process ensures a more uniform and robust casting
The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine
GM TH400 Forward Clutch and Direct Clutch Assembly w/o Clutches - Racing The Speedmaster quick spool systemThe Speedmaster forward drum and direct drum assembly are designed to withstand high horsepower with their upgraded 36 element sprag design. Speedmaster GM automatic transmission parts are manufactured using the highest quality materials for strength and durability.
US$ 20.37
US$ 10.32
US$ 10.59
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