95 to 93 lt1
Thread Starter
8th Gear
Joined: Mar 2024
Posts: 8
Likes: 2
95 to 93 lt1
Okay so I've read a little bit about putting a 93 LT1 engine in a 95 Corvette. The 93 is from a wrecked Corvette but has 23k miles.
It's the best deal around me for hours. The optispark I will swap to a vented. But will my 95 harness interchange with the 93? Or do I need to splice the 93s to the 95s? Not big on wiring so may go to a shop but am trying to keep the car original my block is just toasted. Souna. Bearing and seized a piston and cracked the wall through to the cooling chamber so it's out of question.
All help greatly appreciated!
It's the best deal around me for hours. The optispark I will swap to a vented. But will my 95 harness interchange with the 93? Or do I need to splice the 93s to the 95s? Not big on wiring so may go to a shop but am trying to keep the car original my block is just toasted. Souna. Bearing and seized a piston and cracked the wall through to the cooling chamber so it's out of question.
All help greatly appreciated!
Thread Starter
8th Gear
Joined: Mar 2024
Posts: 8
Likes: 2
You can't swap the optisparks between 93 and 95 because the drive configuration is different and non-compatible. You can swap the opti and its matching drive shaft from the 95 to the 93 engine. (This is what I would do.)
I don't know the exact differences between injectors, throttle body, and other details. But the 95's entire intake manifold with injectors, fuel rails and throttle body will bolt to the 93 engine. Plug the 95's wiring directly into the newly configured 93 engine. If you swap the intake, most of the electrical components will be the original 95's anyway. The rest are compatible. Swap the knock sensors, too.
I would suggest you plan to completely re-seal the 93 engine prior to installation. Oil pan, front cover and it's 3 seals, valve covers, intake, even the dipstick tube and filter stand. Replace the pressure switch on the rear. I have a 92 and oil leaks have been a constant nuisance. I finally did everything I just mentioned all at once, and 1,000 miles later, it is finally still dry.
Good luck with your swap. It should go well.
PS: If the ECM from the 93 is available, I am willing to pay good money for it to have as a spare. Get the guy to throw it in with the engine, sell it to me, and defray some of the cost of the replacement engine. Win-win. Thanks.
I don't know the exact differences between injectors, throttle body, and other details. But the 95's entire intake manifold with injectors, fuel rails and throttle body will bolt to the 93 engine. Plug the 95's wiring directly into the newly configured 93 engine. If you swap the intake, most of the electrical components will be the original 95's anyway. The rest are compatible. Swap the knock sensors, too.
I would suggest you plan to completely re-seal the 93 engine prior to installation. Oil pan, front cover and it's 3 seals, valve covers, intake, even the dipstick tube and filter stand. Replace the pressure switch on the rear. I have a 92 and oil leaks have been a constant nuisance. I finally did everything I just mentioned all at once, and 1,000 miles later, it is finally still dry.
Good luck with your swap. It should go well.
PS: If the ECM from the 93 is available, I am willing to pay good money for it to have as a spare. Get the guy to throw it in with the engine, sell it to me, and defray some of the cost of the replacement engine. Win-win. Thanks.
Thank you all for the tips, hopefully everything goes smoothly, and it will comes with the engine harness and computer which I will be selling if I don't need them,(which seems to be the case) if you'd like message me privately and we can swap personal info and setup a deal
Thread Starter
8th Gear
Joined: Mar 2024
Posts: 8
Likes: 2
But if I absolutely need a pig tail being shot on funds this month and it being my daily I may swap it to the 95s optispark.
Instructor
Joined: Mar 2021
Posts: 169
Likes: 25
You need this wire and it will connect to yours 95 wire harness. I'd open up the 93 opti and verify if it's original and clean it out, reseal and run it.
https://www.google.com/search?ie=UTF...gtail+1993+lt1
https://www.google.com/search?ie=UTF...gtail+1993+lt1
Last edited by 93TALT4A4; Apr 28, 2024 at 07:46 PM.
Thread Starter
8th Gear
Joined: Mar 2024
Posts: 8
Likes: 2
You need this wire and it will connect to yours 95 wire harness. I'd open up the 93 opti and verify if it's original and clean it out, reseal and run it.
https://www.google.com/search?ie=UTF...gtail+1993+lt1
https://www.google.com/search?ie=UTF...gtail+1993+lt1
up
Last edited by Slowvette95; Apr 29, 2024 at 08:59 PM.
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Burning Brakes
Joined: Aug 2023
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From: San Diego
And when you do the timing cover get the right tools to ensure seals go in correctly. There are write ups about it.
I put a 96 in my 93, was no big deal. Used the reluctor ring and 96 cover. 95 doesnt have this, so, its really just a Vented Opti, harness is all. The rest of the stuff is a a little different. Use all 95 intake items, as said before.
I put a 96 in my 93, was no big deal. Used the reluctor ring and 96 cover. 95 doesnt have this, so, its really just a Vented Opti, harness is all. The rest of the stuff is a a little different. Use all 95 intake items, as said before.
Thread Starter
8th Gear
Joined: Mar 2024
Posts: 8
Likes: 2
And when you do the timing cover get the right tools to ensure seals go in correctly. There are write ups about it.
I put a 96 in my 93, was no big deal. Used the reluctor ring and 96 cover. 95 doesnt have this, so, its really just a Vented Opti, harness is all. The rest of the stuff is a a little different. Use all 95 intake items, as said before.
I put a 96 in my 93, was no big deal. Used the reluctor ring and 96 cover. 95 doesnt have this, so, its really just a Vented Opti, harness is all. The rest of the stuff is a a little different. Use all 95 intake items, as said before.