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4L80e to gen 1 sbc

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Old 05-20-2011, 11:11 AM
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Default 4L80e to gen 1 sbc
Wonder if anyone could chime in.

What is needed in the mating of the two? I have the controller I am speaking pure mechanical wise.

Am I going to need spacers?
Special flexplate?

thanks
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Old 05-20-2011, 11:17 AM
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Just get a flexplate that will fit a TH400 and you will be good to go. They have the same bolt pattern and pilot length.

Chris
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Old 05-20-2011, 11:26 AM
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Originally Posted by Circle-D
Just get a flexplate that will fit a TH400 and you will be good to go. They have the same bolt pattern and pilot length.

Chris
I currently have a th350. This is different correct?
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Old 05-20-2011, 11:41 AM
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Originally Posted by 3.8redbird
I currently have a th350. This is different correct?
Smaller bolt pattern on the 350, but you might have a dual bolt pattern flexplate. So you could use the outer 3 on the 4L80.

Chris
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Old 05-20-2011, 11:44 AM
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Originally Posted by Circle-D
Smaller bolt pattern on the 350, but you might have a dual bolt pattern flexplate. So you could use the outer 3 on the 4L80.

Chris
If not the Hughes you posted in the pdf file would fit correct?
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Old 05-20-2011, 11:47 AM
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Originally Posted by 3.8redbird
If not the Hughes you posted in the pdf file would fit correct?
No, that is for an LS style motor, different crank dimensions.

Chris
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anyone have pics of modified stock a4 crossmember for th350 swap




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