93z28de

ok any one over 185k miles on the stock motor ? i seen one post cant seam to find it one guy sed his buddy had a 190k and made like 280rwhp. what have you all seen out of the higher higher mile lt1s ? power wise and at the track and what mods thanks for any info or input.

Zlow28

iTrader: (11)

Mine had around 190xxx before i shut her down. Stock opti, and zero problems untill i had to go around messing **** up.

Never had her on the track or dyno though. But ive beaten a bunch of cars that are supposed to have similar performance numbers. 4th gen mustang GT's, an older m3, charger/challenger RT's and even kept up with a srt8 challenger decently. I was stock with CAI and exhaust.

98NOOBz28

sorry to kina mess this up but Im new to this and just bought a 98 z28 camaro 3 days ago its got 175k miles on the chassis and previous owner said the engine was swapped by another previous owner but idk if it was it sounds healthy and the body is amazing all black with zo6 corvette rims got a couple mods but idk if I should be worried about the motor or not? is there anyway I can tell if its the original motor or not? it'll help me sleep at night thanks

Zlow28

iTrader: (11)

93Z2871805

iTrader: (5)

My Black 93 Z28 currently has 189k and still runs like a champ (sounds pretty healthy too for a stock exhaust, lol). From what I can tell it's all original except for the AC compressor and maybe the opti. It's almost sad that I'm about to rip its heart out and drop an LS in its place.

93z383

iTrader: (-1)

You kind of answered your own question.. there isn't any way for anyone to tell you otherwise. If it runs strong and has no issues, ride it till the wheels fall off bro. The only way to find out if the motor's been swapped is to investigate yourself.

My 93z has about 175k on the body and ran like a top before I built the motor. Zero issues man.. it ran better and was faster than cars with half the mileage. The body is mint too, verrrrry little rust. Love the lt1's man, they will be so good to you if you just take care of them and don't beat the **** out of em 24/7. My Roadmaster's also got about 170k on it and runs like brand new.

nascarnate326

iTrader: (1)

I have 170K on mine and still beat the **** out of it. Almost ready for a cam swap.

I have never been to the track or dyno though

I know my motor is original but my T56 has been replaced.

I love a good 4th gear pull in my car

ZFreie

167k on mine, LTs ory ls1 lid and tune, I DD the thing and do not baby it. Never misses a beat.

05HD

My first 3rd gen had spun the clock 3 times (300k original engine). It burned some oil and needed valvesprings but it took daily beatings no problem. I can't see why an LT1 would be any different.

94nismoformula

a little over 212k miles on what i believe is the original motor. had the rear main seal fail and ac compressor fail. still running strong otherwise

GreenBlood55

iTrader: (1)

Had a 94 A4 lt1 T/A that was at 223k when i sold it. still ran perfectly fine. some rattles and shakes but engine was solid.

96capricemgr

iTrader: (1)

This is not a 70s engine with a piece of **** carb washing the cylinders down with raw fuel, causing enough wear to measure with a ruler.
If you open it up at 185K you will still find crosshatch on the cylinder walls.

Johnny-LT1-runner

iTrader: (15)

Mine had 225K when the radiator exploded and took out the bearings. Ran 13.8 @ 100 mph and a 2.0 60 foot in stock form.

rich5368

iTrader: (2)

I had a 94 with 170k on it and it ran like new. My current one has 101k on the clock and the way it runs the only thing that's going to cause me tear into it is my own ambition. Take care of them and they'll run forever. My dad sold his LT1 caprice with 275k on the clock and the thing still ran mint.

notsue

Mine only has 144k on it, and I dont see it lasting long enough to see 180k. I wish it would because that'd give me time to build something better, but this car must have been abused pretty badly by previous owners.

TravisMcGill2000

iTrader: (2)

My stock motor had 205k on it when i pulled it. I put down 272rwhp. It ran 12.3@108 na and 11.2@120 on 150 shot.

93z28de

ok first nascarnate326 were did you get them rims love them and 2ed wow guys keep it comeing nice i do have one ? tho i see the lt1 are starting to be more wanted ? then the ls1 camaros why is this two will the lt1 motor out last the ls1 motor in the 98 up camaros ? i see alot fo 98 camaros not just around here but all over and thay have lower miles lik under 120k and thay burn oil like crazy and they were well taking care off ? sorry not to ls1 bash
what you think if you had to guess a 93 z28 cai catback 3" from the converter all the way back and after market converter would run in the 1/4 and but down for power with a auto 194k and 2.73s in the rear motor is super strong no smokeing any were ever dose idle kinda high 850 in park was 500 before



and i have one last ? what would a 52mm pbs tb do for me its only 100 bucks and the egr block off plats

95mysticta

iTrader: (4)

I had 220 miles on mine and it ran perfect. Ran 13.8 @ 103mph with a 2.2 60' just headers and gears on street tires.

TrybalRage

226k and still driving it. I bought it used so I assume it's the original motor. Still runs good, doesn't like to be run cold though. The suspension is falling apart on this car before the motor is.

whytryz28

iTrader: (28)

210k+ here, head gasket went out at around 200k and its been running on ported heads and cam since then.