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#1
06-26-2025, 05:19 PM
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70 firebird trans swap
Do i need to modify the tunnel to replace my stock trans with a 4l60e?
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#2
06-27-2025, 10:09 AM
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Sorry cant answer that... but curious why you want to put a 4l60e in a 70 bird unless it has a sbc or LS. If you want OD, a good 200r4 is a better option that will bolt right up to a pontiac engine.
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#3
06-27-2025, 12:36 PM
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It'll fit no problem. They're essentially the same size as a TH350/400, just slightly longer in the tail shaft.
I've got a 4L80E in one, no modifications.
__________________
"Those poor souls have made the fatal mistake of surrounding us. Now we can fire in any direction" 1970 Trans Am RAIII 4 speed 1971 Trans Am 5.3 LM7 1977 Trans Am W72 Y82 1987 Grand National |
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#4
06-29-2025, 12:45 PM
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I have a rebuilt 4L60 sitting under my bench for a long time, im building this car for a lady and i think the 4L60 will be a nice trans, Ames have a kit that modifies the original shifter and consol so you cant even tell, thats why.
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#5
06-29-2025, 02:04 PM
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Ok, just curious. Is this a sbc engine or Pontiac?
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