LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

93 LT1's. Possible to convert to 94 - 95 style?

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Old Feb 17, 2007 | 01:07 PM
  #1  
SheldonZ28's Avatar
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From: Guelph, Ontario
Car: 89 IROC/05 RX8
Engine: LS1/LS1
Transmission: T56/T56
Axle/Gears: 3.42 GM/3.55 8.8
93 LT1's. Possible to convert to 94 - 95 style?

Hey Everyone.

A simply amazing deal has dropped onto my lap and its impossible to pass up.

The engine/ECM/Intake/TB is from a 93.

Is it possible to convert the engine to the style of the 94 - 95?

If its possible, how would i do this?

Thanks!

Sheldon
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Old Feb 17, 2007 | 02:02 PM
  #2  
Klortho's Avatar
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
ECM and wiring harness, that's it.

If you want the vented opti, you will have to put a 95+ cam in the car, change timing cover and opti. Only difference between the '93 and '94 intake is the rear fuel crossover, it may be worth swapping the intake to the 94+ style.
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Old Feb 20, 2007 | 07:08 AM
  #3  
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From: Indiana
Car: Golden yellow 1987 IROC-Z
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
You dont have to change the entire cam to run the vented opti. All you have to do is drive the dowel pin in further because the differance in the drive flange on the back of the opti. If all you have is the engine the get yourself a 94-95 engine harness, ECM, MAF and knock sensor. The intake and fuel rail is up to you. Not that big of a deal. I have a harness, ECM and MAF from a 95 Z28 automatic if your interested PM me. It is in great shape. Hope that helps.

Jeremy
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Old Feb 20, 2007 | 07:43 AM
  #4  
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Originally Posted by Sleeper_Z
You dont have to change the entire cam to run the vented opti. All you have to do is drive the dowel pin in further because the differance in the drive flange on the back of the opti.
Jeremy
You have to swap out the cams to run the vented opti. They are different, the dowl pin is out further on the vented ones to drive the opti.

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Old Feb 20, 2007 | 03:13 PM
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From: Indiana
Car: Golden yellow 1987 IROC-Z
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
Wow...... Dont I feel like an ***. Ive done atleast 4-5 vented opti conversions and it never occured to me that the cam on a 95+ car had a deeper recess in the front. Ive always done a cam swap while I was doing the conversions so I never had to deal with the stock 92-94 cam. I apologize for my oversight. Thanks Klortho for setting me straight on that. That could could have been a major problem if I had decided to do a vented opti conversion on a car with a stock cam.

Jeremy
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