Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

LT1, LS1, or L98

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Old May 17, 2006 | 02:18 PM
  #1  
demetri's Avatar
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From: Fort Myers, Florida
LT1, LS1, or L98

I'm still debating whether I should go with the LT1 or LS1 or even the L98 route. I know the advantages of the LS1(aluminum block ), but I heard was a pain in the *** to install. What are the advantages of the LT1, I don't want to spend too much money on this. I still don't know if I should just build up the L98, but I want a good fast daily driver that doesnt get ****ty gas mileage. yes ive searched


BTW is the LT1 easier to swap out than the LS1?

Last edited by demetri; May 17, 2006 at 02:53 PM.
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Old May 17, 2006 | 02:27 PM
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Klortho's Avatar
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
If you don't want to spend a whole lot of money, don't go the LS1 route. The LT1 route is better, and for what it would take to buy and get an L98 up to where the LT1 is with HP and torque (and with the HP robbing TPI setup) you could probably buy a stock LT1. My LT1 gets about 21 with me ******* on it around town and when I was driving 30 miles one way to school with the 6-speed and 3.70 gears. I would say on a long road trip, I would edge up closer to 25.
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Old May 17, 2006 | 07:20 PM
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From: Surrey, BC
Car: 1991 Z28
Engine: 305 TPI
Transmission: WC T5
Axle/Gears: 3.73 Posi
There is also the choice of putting an LT1 intake on a Gen I. No more HP robbing TPI intake.
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Old May 17, 2006 | 10:06 PM
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92rs85berlintta's Avatar
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From: check under the car
Car: White 25th Anniversary RS
Engine: lt1
Transmission: t56
Axle/Gears: 4:10
ls1 if you have the money. But.... lt1 is easier and requires less money. they both have there advantages.
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Old May 18, 2006 | 05:36 AM
  #5  
demetri's Avatar
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From: Fort Myers, Florida
Originally Posted by 92rs85berlintta
ls1 if you have the money. But.... lt1 is easier and requires less money. they both have there advantages.

Thanks for the info. Where can I find these advantages at? Also you can use a 400 crank on a LT1 right?
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Old May 20, 2006 | 11:16 AM
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CAH383's Avatar
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From: Ft. Wayne, IN
Car: 86 Camaro Z28
Engine: 5.3 LM7
Transmission: TH400
Axle/Gears: 3.23
They make stroker cranks ready to go for LT1's now. Probably the best bet.
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Old May 20, 2006 | 11:25 AM
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I know many will completely disagree with my view, but I say, stay with an L98.

In my opinion,, it's not really a 3rd gen, without TPI. TPI is what these cars are known for. They're the coolest looking engines to come off GM's assembly line, and with an aftermartket intake base, runners and ported plenum, should flow to atleast 5500-5800rpm without too much trouble.

I'm not totally against engine swaps, if that's what someone wants to do, power to them, but I'm much more impressed when I see a really fast third gen......using TPI.

Stuffing in an entirely different motor or intake set-up (LT1 intake/HSR etc. etc.) in my opinion, really takes away from these cars. TPI is the heart and soul of every late-model third gen. To ditch it, just feels...wrong .

A fast 3rd gen with a BigBlock? Big deal. ...
A fast 3rd gen with an LT1/LS1? Boring....

But an 11 second or faster TPI ?? Now THAT'S something that would surprise and spark interest in EVERYONE!

To each there own I suppose. Good luck.

Last edited by LT1FUN; May 20, 2006 at 05:22 PM.
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