T5 to LSX?
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Joined: Jun 2010
Posts: 554
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From: Martinsburg,WV
Car: '02 T/A
Engine: LS1
Transmission: 4l60e
Axle/Gears: 3.23
T5 to LSX?
So I've already done a search and everything says you need a 621 bbc bellhousing to mate a t5 to an lsx and I already know these aren't the strongest transmissions in the world. I've got a buddy whos helped a friend do a 4.8/t5 swap into an 80s regal and they both say he's using a sbc bellhousing with an lsx clutch. He said the only modification he had to do was elongate some of the bellhousing or tranny bolts and some spacer for the crank I believe. His 4.8 is stock and the t5 is holding up fine. Has anyone else heard of this setup using a stock sbc bellhousing??
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Joined: May 2013
Posts: 249
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From: Indiana
Car: 92 Z28
Engine: ls3
Transmission: t56
Axle/Gears: 4.11
Re: T5 to LSX?
So I've already done a search and everything says you need a 621 bbc bellhousing to mate a t5 to an lsx and I already know these aren't the strongest transmissions in the world. I've got a buddy whos helped a friend do a 4.8/t5 swap into an 80s regal and they both say he's using a sbc bellhousing with an lsx clutch. He said the only modification he had to do was elongate some of the bellhousing or tranny bolts and some spacer for the crank I believe. His 4.8 is stock and the t5 is holding up fine. Has anyone else heard of this setup using a stock sbc bellhousing??
A sbc bell housing will bolt up to an ls, all but one bolt. Its been a while but my father n law has a built 700r4 behind his ls in a jeep and it bolted up fine with the stock sbc bell housing. He did have to use a different fly wheel and I believe that it had a spacer built in to.
Joined: Nov 2008
Posts: 2,093
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: T5 to LSX?
Pocket worked on this a while back. Post 2 has a bunch of usefull info. https://www.thirdgen.org/forums/ltx-...wap-again.html
Joined: Jul 2000
Posts: 6,518
Likes: 91
From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: T5 to LSX?
Keep your eyes peeled for a used. Lakewood 15020.
It keeps everything T5 thirdgen compatible.
The 621 lacks the mounting angle of the third gen.
It keeps everything T5 thirdgen compatible.
The 621 lacks the mounting angle of the third gen.
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