Any one here who swaped an LT1 on there 3rd gen put the lt4 conversion on it? Is it really worth it? Does it pass the e-check? Also can i have some links to swaping in a lt1 in a third gen cause make the l98 roar seems to be a bit to expensive in the long run.

 

The LT4 is a performance option and there is little exterior difference. So there is no difference as far as the swap is concerned.
Whether it's worth it or not is up to you. Is nearly a 100hp increase worth $2,000.00. One of the benefits is that this was an option so it meets all EPA standards. But your probably going to have to burn a chip for the 3rd Gen. anyway so this is not an overwhelming reason to do it.
I would think that getting your L98 to "roar", which is really only heads, cam. and intake, would be cheaper in the long run then doing this swap.

 

No it is not worth it, LT4 conversion that is. If you go LTx route just contact get a LE1 or LE2 and you will beat the living crap out of the LT4 conversion. Building the L98 in the long run might not be as bad as you think, compared to the time/money in. If you put the $ that the swap will run (engine, misc.parts, etc) and the price of the LT4 conversion kit into the L98 (well thought out plan/goals) it will be a whole different beast easily able to take on LTX/LSX. A L98 with p/p heads, a custom grind cam, a HSR, with a little N2O (for good measure), and all supporting mods with definatley be pretty "tough". It would hold it own againt H/C lt1, even off the bottle. Just something to think about. But if you want some info on the swap check out thirdgen.org under there LTX/LSX swap forum or check out http://www.hpsalvage.com/

 

lt4 is outdated. just port the lt1 heads and intake, and make a custom cam and your making much more power.

 

Take the LT1 and get an LE1 package. Makes about 360-370 at the wheels and is cheaper than the LT4 kit.

 

How much do the le1 and le2 packages go for? You guys really think the l98 would be cheaper? I want to get rid of the tpi for something that breaths deeper. Any ideas/ costs thanks

 

l98 will be cheaper, something that breaths more than a tpi is maybe a mini ram or a stealth ram. mini ram will get you more low to mid power and a stealth ram will give you mid to high power. im runnin a stealth ram on my stroker. however the miniram and stealthram will run you more than the lt1 intake. and personally i wouldnt put a lt1 intake on a l98 lots of people still have fitting problems even after machining to get them to fit.

 

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That should help. I have been looking into the LT1 swap myself in place of my tired 305TPI. Found out its not as big of a job as you may think. You can keep a lot of old parts and if you dont want to keep the A/C its even easier. Hope that helps.

 

Het thirdgenRS how much hp u makin on that stroker kit and the holley sealth ram. That was my origial plan but i have an 87 camaro and it wont fit. Is there any thing i can do to make it fit on my year? And over all how much can you expect to spend to swap an LT1 ito a third gen.

 

It all depends really. What you do to the engine, the deal you get, whether or not you keep the AC, does your car have TPI or is it carbed or TBI. I've found a few complete LT1 engines on ebay (you'll need the accessories too) for abour 800 to 900 bux and they have around 100k on them. Rebuild kits are not too expensive. I dont see doing all that work to put a motor with around 100k on it when a rebuild kit is only a few hundred bux. A cam only runs a couple hundred bux and its cake to put in a motor thats sitting on an engine stand. Do you want to keep the AC? If so you'll need custom P/S lines and AC lines. You'll also need a new cross member for your tranny and modify the passenger side motor mount if you keep the AC. Are you going to take the easy way out and buy a wiring harness or modify your own? If you go cheap I think you can get out of it for just a couple grand, but why are you going to do all that work and half *** it?

If you've got a 350 I say build it. If you've got a 305 I think it all depends on how fast you want to be. I've been really thinking about an LT1 swap so i've done a lot of homework. If I can help in any way just let me know.

 

not sure yet, no dyno runs yet. when i have money ill get some numbers up. but right now with an open diff, a 700r4 goin out, and 2:73 gears. i tore up a 96SS A4 and a 94z28 m6 with 3:73 gears. they take me off the line but when i hit higher rpms i take off. and the l98 i have in the car is from a 87 IROC that i got for $50. the HSR complete/full kit was 1700. motor build cost me $4100 i had no clearence issues and it was easy to install. if you wana go all out power and have some money to spend id go with the HSR over and LT1. but if you wana budget but a 355LT! and you will be fine.

 

Since he already has TPI the Stealth Ram kit would only be 524.95$(with AFPR). He just needs the plenum, manifold, and fuel rails. He may need some injectors too depending on how much hp he ends up with.

http://www.thunderracing.com/catalog...vid=6&pcid=177

#1 and #4 is all he'd need.

 

Camaro Dragger,

I am building my L98 this year....buying little at a time. Look at my sig and you will see what I am doing. I have priced everything and it is roughly around $2500, and estimated HP around 425-450. And that is without rebuilding the block at this time. I will do that after it blows. So yes you can get the L98 to roar for chep, but ur car up to you. If I were to do a swap....it would be LS1 and then build the LS1.