Author Topic: LT1 engine and transmission swap  (Read 11591 times)

Offline jmoto42

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LT1 engine and transmission swap
« on: January 29, 2010, 03:54:12 PM »
Looking for the pro's and con's of swapping a LT1 engine and transmission from a 97 Z-28 over to my 82 GMC 1/2 ton. What are some of the problems I might run into? The LT1 is complete with the original auto trans, computer and wiring harness.
« Last Edit: January 29, 2010, 04:27:05 PM by jmoto42 »

Offline eventhorizon66

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Re: LT1 engine and transmission swap
« Reply #1 on: January 29, 2010, 04:56:45 PM »
Pros: more power, better gas mileage, fewer gotcha's compared to a LSX swap.

Cons: cost, there are always a few gotcha's, opti-spark dizzy.

If you've got a complete engine/trans/ECU/harness, I'd say go for it.
'85 C10 SWB 350 700R4 TKO600

Offline Captkaos

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Re: LT1 engine and transmission swap
« Reply #2 on: January 30, 2010, 07:56:46 PM »
can't add anything to that...

Offline slammedgringo

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Re: LT1 engine and transmission swap
« Reply #3 on: January 30, 2010, 09:36:35 PM »
Well guys I'll have pics up soon but yea I just made married my new project engine today. Went down to west palm beach and picked up a LT1 Complete engine today with harness,ecm,and serpintien set-up. All except the 4l60E or 4l80 whatever I choose to put it in..... I baught it knowing only one thing I NEED A NEW BLOCK SO WTH lets go big.... can anyone direct me to someone thats done the swap?... I would hate to but the GMPP intake and turn this thing carburarted but that would be my last draw. I would rather keep the performance and MPG of the fuel injection. I mean I do have the whole engine with TPI set-up still on it..  ???

Offline Captkaos

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Re: LT1 engine and transmission swap
« Reply #4 on: January 31, 2010, 07:20:36 PM »
An LT1 is basically a bolt in using sbc mounts.
Your only gotcha it the waterpump.  This has been discussed a few times and there are members here with LT1's.

There is no way I would swap to a carb..

Offline jmoto42

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Re: LT1 engine and transmission swap
« Reply #5 on: February 03, 2010, 09:06:48 PM »
Here's a link I found from a company in Mena, Arkansas that did a swap into an 83' model.  Some pretty good information.


http://www.hotrodlane.cc/PDFFILES/83chevyLT1install.pdf

Offline Captkaos

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Re: LT1 engine and transmission swap
« Reply #6 on: February 04, 2010, 10:24:37 AM »
That is Street And Performance.  Their whole company is centered around drivetrain/engine swaps.  Mark knows his stuff.

Offline slammedgringo

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Re: LT1 engine and transmission swap
« Reply #7 on: February 08, 2010, 03:49:11 PM »
Jmoto good post, Yea the passenger mount was a problem I was looking at but they answered it. I still hav'nt even put my engine on the stand hopefully this weekend I'll get it on the stand and de-greased and first pics of my swap posted. Did notice opti spark was cracked so will need to get new opti spark and still looking for a 4L60E. Will also need to order my ac delete pully. PICS soon

Offline jmoto42

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Re: LT1 engine and transmission swap
« Reply #8 on: February 08, 2010, 08:42:07 PM »
I stripped off all the stock pulley's, power steering pump, exhaust manifolds and wiring harness this past weekend and degreased the motor.  It wasn't too bad just a little grease up front.  Just ordered my new pulley system and a few other parts today.  I've rebuilt a few motors over the years but have never done a newer fuel injected engine.  Parts sure are pricey. :o
« Last Edit: February 08, 2010, 08:44:17 PM by jmoto42 »

Offline jmoto42

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Re: LT1 engine and transmission swap
« Reply #9 on: February 19, 2010, 09:46:37 PM »
Updating the new engine with a new pulley system.

Offline 73SWBBB

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Re: LT1 engine and transmission swap
« Reply #10 on: September 22, 2011, 08:14:50 PM »
I know its been some time on this thread but hopefully you've made some progress? Im considering the same swap. I have a lead on everything including a transmission for 800 with 81K miles. Any snags?