Ls 6.0 and 8.1 big block

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May 9, 2018 | 02:41 AM

fern82

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Ls 6.0 and 8.1 big block

Hey there Guys this might be a Noob question but I was offered a G body Elcamino with a 2001 8.1 Motor swap in it complete running. And I was wondering if I get it and Motor goes bad. Will it be easy to swap an Ls motor in it 5.3/6.0 etc, or do I still have a lot of work ahead of me. Just wondering if they use the same wiring same same Accessories Etc for an easy swap From the 8.1 to a Ls1 or 6.0 or will I need different parts? If you can please help or if you have any advise I’ll apreciate it thanks.

May 10, 2018 | 09:40 AM

11spaceships

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iirc the 8.1 is a true big block family engine and not LS based at all. It will be as much of a pain as swapping an old school 454 out for a new LS small block

May 10, 2018 | 03:25 PM

fern82

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Quote:

Originally Posted by 11spaceships

iirc the 8.1 is a true big block family engine and not LS based at all. It will be as much of a pain as swapping an old school 454 out for a new LS small block

Ok I just thaught maybe they can use the same wiring and Computer but If it will still be a hassle I rather not get it, Thank you @11spaceships I apreciate it👌🏽

May 10, 2018 | 03:35 PM

MY_2K_Z

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As far as electronics they do both use a p01 ecu, I think swapping from the 8.1 to an ls would be pretty easy and straightforward

May 10, 2018 | 07:06 PM

fern82

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Quote:

Originally Posted by MY_2K_Z

As far as electronics they do both use a p01 ecu, I think swapping from the 8.1 to an ls would be pretty easy and straightforward

ok because I’m not to fimiliar with them, which parts do you think I will need to Replace or Add to it?

May 11, 2018 | 08:42 AM

ryeguy2006a

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Quote:

Originally Posted by MY_2K_Z

As far as electronics they do both use a p01 ecu, I think swapping from the 8.1 to an ls would be pretty easy and straightforward

I would disagree that it is pretty easy and straight forward as there are way more differences than similarities between the 8.1 and the LS motors. Mounts, exhaust, oil pan, and etc. Yes the computers are similar, but you would need to have someone do a segment swap for it to function correctly. Just search on the site and like what was said before, it would be very similar to swapping from a traditional BBC.

May 13, 2018 | 08:40 PM

Fast355

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Quote:

Originally Posted by fern82

In my experience 8.1s are cheaper and easier to find than a 6.0L and make ALOT more torque. Big blocks are grunt engines especially the 8.1. Its basically a stroked 454 with different heads. Would be easy to make that G-body FLY even with a highway geared axle. I had an Elcamino with a 2.42 gear once. Would have been the perfect axle for that engine along with a 4L80E.