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Step up to the high-rpm power of an open plenum with Speedmaster HiRise intake manifolds
These headers are designed with 5/16 in
The tank comes with a removable cap so you can easily check the coolant level
Speedmaster crankshafts are nitride-hardened
it ensures optimal oil flow and reliability under extreme conditions
GM TH400 Forward Clutch and Direct Clutch Assembly w/ Carbon Fiber Clutches - Racing Step up to the high-rpmThe Speedmaster forward drum and direct drum assembly are designed to withstand high horsepower with their upgraded 36 element sprag design and carbon fiber friction plate material. Speedmaster GM automatic transmission parts are manufactured using the highest quality materials for strength and durability.
