IHeartTurbo

I know I've read that 01-02's are the best to get because of mileage, better oil pump, more stock power, etc. But is there any reason I shouldn't save a little money (I'm on a budget) and get a 98 or 99 and change the oil pump?

rao

iTrader: (18)

No. There is not a material difference and if you are not going to boost it or aggressively modify it with bolt on s you will never know the difference.

cherryelky305

iTrader: (2)

no, the only real thing to watch is milage. I wouldent get a pull out with 100K and plan on just using it. --> unless its dirt cheap and then you can afford to rebuild it?

Cam72aro

iTrader: (28)

01 and 02 models run the ls6 style intake and make a little more power because of a different cam and head configuration. If you are changing the intake and modding it anyway then it doesnt matter. Mine is a 00 model.

pist0lpete

iTrader: (3)

I would say the biggest advantage to the 01/02 engines are the rod bolts. The 98-00 engines had weaker rod bolts that have been known to fail when the engines are revved to high(to make max power with a bigger cam for example). However, since you would already have the engine out it would be pretty easy to just take off the pan and change the rod bolts out.

So-GT0071

Correct me if I'm wrong, but I think the 98-99 ls1's have a more aggressive cam than the later models. But the later models have the LS6 intake(01-02) and the better flowing heads.

But yea....there's no reason to not buy a 98-99. LS1 is an LS1...In some cases you are better off with an earlier model engine. For example I used a 98 in my swap because I need to have the egr to pass emissions.

Cam72aro

iTrader: (28)

From what I have read the 01 and 02's have a bigger cam, lift and duration.

So-GT0071

cool...managed to find the cam specs...I had it bookmarked

http://www.smokemup.com/tech/ls1.php

Corner Worker

98-00, or 01-02....its still way better than the stock motor that came in whatever car you plan on putting the LSX in anyway.

kesslerbmw

You know it.. Thats why we're all here.

NX74LS6

I drove several 98-00 LS1 ( T/A, Camaro) and noticed that the 01 + had more usable torque and didn't sacrifice anything on top ( perhaps helped by the LS6 manifold.) The heads were unchanged. The 99 T/A & SS I drove really felt soggy down low. So I settled on my old 01 SS ...my first brand new car at the ripe old age of 38 , back in 01. Wished I never sold her... but I like the 74 better...most of the time.

Stu Cool

iTrader: (13)

Actually, 99-00 have a bigger cam both duration and lift than the 01-02. If you put the LS6 Manifold on the 99-00, then you have the best of both. I believe the 97-98 do have a different ECU set up that is not as programmable or as widely interchangable as the later model. As others have said, they are all good, just shop for mileage.

Pat

IHeartTurbo

Well I just called around a couple places. One place has an 01 with 30k for 4500 and on 02 with 65k for 3700. The other place I got ahold of didn't have anything less than 96k, it was a 98, and he wants 3800. The only other place I have a number for isn't open yet so I'll try them on my lunch break. Taht 01 with 30k looks like the best deal so far.

NX74LS6

A lso I was told that 99 had different injectors than even 98( for whatever reason the 99's seem to dyno lower than any LS1 at the old Morgan Motorsp dyno days) maybe it was in the tune, back then it was well known about the 99 's , although I 've seen strong 00 and 98 putting down great #'s.

IHeartTurbo

So I called back to ask for some pictures of that 01 with 30k and it's been sold. The other one with 65k was sold, too. Damnit.

IHeartTurbo

Does this sound like a good deal?

02
64k
$4800
all accesories
harness
ecm
6month warrantee

lt4malibu

iTrader: (39)

aside from all the things mentioned, dont the '02-'04 ls1's have the ls6 block with the better oiling system??

Corner Worker

"Iheartturbo" what are you building anyway? If you plan on doing a 240sx, you should entertain the idea of a L33. 05-07 1500series 4X4 trucks....5.3l, aluminum block, 310hp, and way cheaper than the LS1. If weight is not an issue, you can never go wrong with a 6.0l. L92 heads, big snail, etc, 600hp is fairly easy to get. But for $3800, you should be able to buy motor, trans (t-56), wiring harness, ECM, accesories, etc out of a camaro/ firebird just about anywhere.

SatisTraction

iTrader: (2)

i would get an 02. to upgrade the oil pump and intake will cost you $450 or so if you get the 98,99

RE AND CHERYL

iTrader: (31)

Actually...You didn't. The EPA allows drive train swaps in vehicles as long as the engine being swapped in is the same year or newer and is installed with ALL of it's original emissions equipment. Since an 01-02 LS1 did not have EGR, it would not be required.

I fought this battle with DMV over a friends car in MD. If the emissions package being swapped in is intact with nothing missing, it's legal. Most newer GM vehicles don't have EGR anymore.

Re'