C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1994 LT1 Engine swap.

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Old May 16, 2011 | 11:05 AM
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Default 1994 LT1 Engine swap.

I have a 1994 LT1 I blew the engine due to the radiator hose busting on my was to work. I just bought a 383 stroker, I need to know if any of my parts will fit off my LT1 to the new engine. Its a 350 block out of an 1981 Camaro I believe. If anyone can help me please help. LOL!
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Old May 16, 2011 | 11:12 AM
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Very little will transfer. That's not a good replacement for an LT1.
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Old May 16, 2011 | 11:15 AM
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Originally Posted by 1994RedRocket
I have a 1994 LT1 I blew the engine due to the radiator hose busting on my was to work. I just bought a 383 stroker, I need to know if any of my parts will fit off my LT1 to the new engine. Its a 350 block out of an 1981 Camaro I believe. If anyone can help me please help. LOL!
Basically none. You have a LOT of work and $$$ ahead of you if you want to make an '81 Gen 1, two-piece rear seal engine work.

Your best bet is to sell it and go find an LT1 or simply have your existing engine rebuilt.
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Old May 16, 2011 | 11:40 AM
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Thanks I was told it wasnt gonna be that bad but now looking at it I am gonna have to figure something else out. I just thought a 383 stroker would be pretty awesome in my vette. I didnt think it would cost that much money to get it in. Thanks again.
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Old May 16, 2011 | 11:54 AM
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That 81 SBC is a no go for the LTx engines.
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Old May 16, 2011 | 11:49 PM
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don't give up quite yet

Chevy (and probably others) make seal adapters that allow placing an early crank with a two piece seal in a later block designed for a one piece seal.

with the adapter in place, I see no reason your entire 383 rotating assembly couldn't be transplanted into your LT block.

I would research and see if there is a shallow pan availble for this type of adaptation; remember a stock LT vette pan is only 7 inches deep.
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Old May 16, 2011 | 11:51 PM
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Thanks I will look into it!
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Old May 16, 2011 | 11:54 PM
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Its all my other components I am worried about too. The water pump, tbi, headers. I think I might just rebuild my LT.
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Old May 17, 2011 | 06:34 AM
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sell it, and use that money to rebuild the lt1. you can always stroke the lt1 into a 383 for pretty cheap. this will equal ALOT less headaches when it comes time to put the motor back in and get everything working
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Old May 17, 2011 | 07:23 AM
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Originally Posted by littlesk8cracker
sell it, and use that money to rebuild the lt1. you can always stroke the lt1 into a 383 for pretty cheap. this will equal ALOT less headaches when it comes time to put the motor back in and get everything working
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Old May 17, 2011 | 08:16 AM
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It sounds like the 383 is used. If so, by the time you would have the rotating assembly checked / re-balanced, buy the adapater, and buy a new flexplate or flywheel, you'll have saved virtually no money.

Save the headaches. Rebuild your LT1
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Old May 17, 2011 | 09:28 PM
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Originally Posted by 96GS#007
It sounds like the 383 is used. If so, by the time you would have the rotating assembly checked / re-balanced, buy the adapater, and buy a new flexplate or flywheel, you'll have saved virtually no money.

Save the headaches. Rebuild your LT1
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Old May 22, 2011 | 10:19 AM
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Thanks so much! I decided to rebuild and with what i am doing it will be close to the same horsepower.
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