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5.7 T5 Swap Bellhousing Problem

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Old Jan 24, 2012 | 09:12 PM
  #1  
91SR71's Avatar
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Car: 1991 Firebird Formula
Engine: 305 TBI
Transmission: borg warner T-5
Axle/Gears: 3.08 open
5.7 T5 Swap Bellhousing Problem

I just swapped out my 5.0 for a 5.7 and the bell housing has a gap between it and the block. I'm running the stock T5. The top bell housing bolts are tight but the bottom bolts on either side won't snug up. Is there anything I can do short of pulling the motor and trans again?
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Old Jan 24, 2012 | 09:41 PM
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five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I moved this to its own thread because, although your car is a Pontiac, the engines you're talking about are not.
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Old Jan 24, 2012 | 10:37 PM
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vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 5.7 T5 Swap Bellhousing Problem

Did you center the clutch disc?
Is bellhousing sitting on the alignment dowels square


Originally Posted by 91SR71
The top bell housing bolts are tight but the bottom bolts on either side won't snug up.
And loosen the top bolts off before you break or bend something.
Something is stopping trans pulling up square.
You never only tighten one set of bolts; should do all bolts progressively
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Old Jan 25, 2012 | 07:49 AM
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From: St Catharines, ON
Car: '85 Z28
Engine: 350
Transmission: T5
Axle/Gears: 3.23
Re: 5.7 T5 Swap Bellhousing Problem

.

Last edited by 85_ZED28; Jan 25, 2012 at 12:47 PM.
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Old Jan 25, 2012 | 12:26 PM
  #5  
ex-x-fire's Avatar
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Re: 5.7 T5 Swap Bellhousing Problem

Are you puting on the bellhousing alone or is the tranny still bolted to it?
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