Slammed-am

I am in the market for a T/A. Due to my financial situation, mine will probably have upwards of 60-80k miles . I want to know which engine holds hard driven mileage better ls1 or lt1. Also, which will last longer? (in both normal, and hard driven conditions) The engine should be well maintained. I want to have the car for as long as possible, so i want it to last. Thanks.

98boxer

iTrader: (7)

This was talked about in a past thread and got many respones, try a search, you will be able to read lots of info on owners current millage and so on. My car has 83,200 miles and still runs strong, I do up to date maintence, and I really tear into the car every know and then, especially weekends.

Slammed-am

Thanks, I'll do some more searching then.

Ls1LikeNoOther

I think both are good...But I think you need to just keep up on maintenance...And Replace the Opti on the LT1

Damian

iTrader: (89)

LT1's will last longer. I've owned both and I can definately say the LT1 wins by a long shot in longevitiy.

FWIW, I have friends with old LT1's with upwards of 300,000 miles on the original motors..

mySStery_machine

iTrader: (23)

Curses to the Opti!!!! PITA part to replace!!!

z98

If you're modding you'll get the urge to put in a new rotating assembly in every 6-8 months, so its a moot point

CaptUSA

iTrader: (5)

If you're looking to buy a used LT1, it's going to have hella high miles on it anyway. So any difference in longevity would be canceld out. Just my thoughts on it.

LoPeY

iTrader: (6)

I disagree, you can find low miles for pretty much any car. You just have to take your time and look hard and be willing to spend a bit more. There's a 1994 LT1 Trans Am for sale here in Albuquerque with I think 9k miles that has never ever seen rain. I'd have to say that's pretty damn low mileage and wear on that car.

glennhl

I bought a 94 Z28 6 speed new and love the car. My son drives that car, now has 90,000 miles. It's been great except for the Optispark, what a POS. I haven't had my 2001 that long, but after reading tons of stuff on both, my feelings are that the LT1 will live longer. Probably because it will spend more time at lower rpms. LS1's get spun up very tight. I have the redline on the LT1 at 6050 rpm and the LS1 is set at 6650. I think since the LS1 with a cam loves high rpms, that is what probably shortens their lives. If you were to put the rev limiter on a stock LS1 down at 5800 like a stock LT1 I bet they'd live the same.

01Z0H6

iTrader: (63)

I have a 2000 LS1 with 160K on the clock.

currently having a cam put in.....

Gloveperson

iTrader: (9)

There is an add on autotrader as we speak of a 94 M6 Z28 that was never titled (just search "anywhere" and you will find it, I think it was gray)

Isn't the block of the LS1 supposed to be stronger? 6 bolt aluminam vs. 2 bolt iron. The extra 4 bolts should cancel out the weaker material, right?

>>I bought a 94 Z28 6 speed new and love the car. My son drives that car, now has 90,000 miles. It's been great except for the Optispark, what a POS. I haven't had my 2001 that long, but after reading tons of stuff on both, my feelings are that the LT1 will live longer. Probably because it will spend more time at lower rpms. LS1's get spun up very tight. I have the redline on the LT1 at 6050 rpm and the LS1 is set at 6650. I think since the LS1 with a cam loves high rpms, that is what probably shortens their lives. If you were to put the rev limiter on a stock LS1 down at 5800 like a stock LT1 I bet they'd live the same.<< Sums it up perfectly.


-Todd

CaptUSA

iTrader: (5)

Yeah buddy! That's a man right there. "Damn the torpedoes"

Keenov

iTrader: (5)

I bought mine with 83k on it. Runs very strong. I think I was the first to bend the pushrods though. Fixed them up and runs a lot stronger now!

It has 93k on it now.