American Powertrain Bellhousing
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American Powertrain GM/Tremec Magnum Bellhousings

Bolts small/big block Chevys and Buick Olds Pontiac V8 engines to Tremec’s Magnum T56 6-Speed transmission.


American Powertrain has introduced a new GM to Tremec Magnum bellhousing designed with a dual-bolt pattern for use with either Chevy small/big block or Buick Olds Pontiac (B.O.P) V8 engines.

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The bellhousing bolts-up to either the Tremec GM Magnum or a Viper T-56 6-speed transmission. Cast from A356 aluminum, this bellhousing has an over thick casting to handle the torque – making it a cost effective solution for builders that do not need SFI certification or a steel bellhousing.

Featuring a dual starter pocket design to accommodate both Buick and Oldsmobile engines, it comes complete with dust cover and all hardware needed to bolt to the engine and transmission.


For more information: or call 931.646.4836.

Engine Builder Magazine