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- - Flexplate for th350 & 4l80e (https://67-72chevytrucks.com/vboard/showthread.php?t=859447)

chappys4life

06-29-2025 12:26 AM

Flexplate for th350 & 4l80e

Replacing the motor in my 70 c1500. Built a 383 that is internally balanced. Looking for a Flexplate for a 2 piece seal motor that will work with the th350 that’s in it now but also would prefer it will work with a 4l80e I plan on installing down the road so I don’t have to buy a different Flexplate later.

Any suggestions?

kwmech

06-29-2025 11:13 AM

Re: Flexplate for th350 & 4l80e

I've done a couple of 4l80 swaps and not had a problem using the 14'' flex plate that was on the engine.

chappys4life

06-29-2025 10:19 PM

Re: Flexplate for th350 & 4l80e

Quote:

Originally Posted by kwmech (Post 9391744)

I've done a couple of 4l80 swaps and not had a problem using the 14'' flex plate that was on the engine.

Oh good to know. For some reason I assumed I had to change to a 6 bolt Flexplate over the 3 now

kwmech

07-01-2025 11:48 AM

Re: Flexplate for th350 & 4l80e

You do not have to use all 6 bolts if they do not line up.

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