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Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

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Old 04-16-2008, 11:00 PM   #1
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Join Date: Apr 2008
Location: Eastpointe- Crappy Michigan
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Car: 05 Corvette Z06, 86 T/A Big Block
Engine: 468, 427, I6
Transmission: TH400, 6-speed, TF999
Axle/Gears: 3.42, 5.38

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Swapping in a BBC- what motor mounts to use?

I am putting a 468 bbc in my 86 T/A and I am wondering if there is a special motor mount recommended for this swap? Or should I use standard sbc mounts or solid mounts? Just wondering, also what if any, kind of special trans crossmember do I need to run a TH400, what trans came in the car, a 700r4? If so will that crossmember work? I also have the Hooker super comp full length headers and was wondering will I need to use a BFH to get them to fit or are they pretty good fit wise? Thanks alot
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Old 04-16-2008, 11:51 PM   #2
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Motor mounts - poly V8 mounts.

Crossmember - Spohn TH400 swap crossmember & torque arm that mounts to the crossmember.
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Old 04-17-2008, 12:05 AM   #3
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Re: Swapping in a BBC- what motor mounts to use?

When I first did my swap, I just used normal GM rubber mounts. I eventually switched to solid mounts. The engine is held up be a front motor plate now.

The only real difference between BBC and SBC mounts is the height. Using SBC mounts on a BBC will raise the engine up slightly. I doubt you'll notice a difference.

Expect to spend at least a day getting the Hooker headers to fit. They are not a direct fit and some modifications will probably be required. They're the cheapest swap headers and the worst fitting.
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Old 04-17-2008, 08:24 AM   #4
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Location: Eastpointe- Crappy Michigan
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Car: 05 Corvette Z06, 86 T/A Big Block
Engine: 468, 427, I6
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Axle/Gears: 3.42, 5.38

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Re: Swapping in a BBC- what motor mounts to use?

Thanks for the info, could I just buy bbc motor mounts for any 2nd gen fbody or is there a special year/application? What headers would you recommend?
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Old 04-17-2008, 08:24 AM
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