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Tremec T56 Magnum won't mate to Ls7 crate engine

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Old 03-30-2016, 10:51 AM
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Default Tremec T56 Magnum won't mate to Ls7 crate engine

The input shaft bottoms out on the pilot bearing. The shaft is too long. Unsure if Tremec makes more than one shaft for Chevrolet applications. Since the Corvette (which is what this crate engine is intended for) uses a rear mounted transmission, is it possible the pilot bearing is different?
Old 03-30-2016, 11:48 AM
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Remove LS7 pilot bearing.
Install GTO/4th gen F. Body pilot.
Old 04-01-2016, 08:13 PM
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yep.... Magnum needs different pilot bearing!

Anyone else reading this.... if your engine/trans combo doesn't slide together after some wiggling and angle adjustment..... DO NOT try to make it happen by tightening down the bolts from the BH to the Engine. You will either snap your bellhousing... or the rear of the block.



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