My goal for my 90 camaro was 300k. I made it to 303,000. Took the engine and trans out cause I was bored with it. Still ran hard the last day, didn't smoke too bad either.

 

135,000 on rebuilt engine, trans is still the original, hasnt been rebuilt.

 

got my l03 with 102,000 on it. few months later i got into 106,000. its my daily driver so a few more years she will be up there. poor maro. my dads poor lg4 took around 100,000 just from me with one oil change. that thing has 180,000 now with the tranny finally done. still solid

 

280k...still doesn't smoke on startup, even after sitting, nor does it smoke any other time. Leaks all kinds of oil though...

 

Had an 87 G20 Cargo van yrs ago over 230k on it never smoked pass smog well.
Smoothest idling most reliable vehicle Ive ever owned.

It was loose as a goose but never let me down.

 

Around 290,000 on original engine. Looks like it has 200,000 less though lol

 

91 camaros RS, lo3 305 tbi 5 speed, 188k and counting, All Stock except clutch.

 

Just turned 500,00 miles on my '89 Camaro RS (TBI 305). The best part is it has the original engine that's never been rebuilt. No smoke at all and passes California smog every time. This car is still my daily driver to and from work (a 120-mile round trip). If you take care of them, half a million miles is no problem.

 

1992 Roadmaster with an l05, 274,000 original miles!

 

I read this post somewhere an has to take a pic of it cause it related to me extremely well ... I've had the car for 6 years and I had 180k when I bought it (one owner (60yr old lady )all original ) ...I started modding immediately headers, exhaust , ignition, 1.6rr, etc. then finally 4.10's suspension etc. and about 2.5-3 yrs ago I said when I blow it up ill rebuild it better or swap in a 327.... Meanwhile after beating the ever lovin **** out of it and revving past redline several times ... It never blew up ! And I got tired of waiting so I yanked the damn thing out .. And now I'm rebuilding it

 

What are your plans/goals for your buildup? Before I can do the engine mods I want, there is a few more things to square away. But,eventually there'll be a comp cam, holley tbi, and hedman shorties under the hood!

 

152K on the 89 LO3. Original miles. Smokes pretty bad after a restart. Eats oil fairly quick. Develops piston slap when warm. However she still fires up and pulls me around on my off days. Beat it up a lot when my dad passed it down in HS. Ran ARCO 87 all the time. Terrible choice. Now I just baby it and stays mostly garaged

 

Check my thread in TBI section ..." LO3 rebuild ( HP estimates ) "

 

Mines a 89 RS with the 305 tbi, 318k miles and even with the few problems i,ve had with it the engine still starts up and runs good, kinda wondering if this is one of those "hard to kill" engines, i was getting worried about doing a rebuild soon but i see a lot of you posted that your engines are still original non rebuilt.

 

I've only owned my 91 t-top 305 for a few months. It had 183K on the clock when I bought it, well over 184k now. Runs strong, everything works, even a/c except 3rd brake light. Has some issues but trying to sort them out one at a time.

 

My 91 Caprice has made it 339,300 miles on an original L03 305 engine, never been unbuttoned. Second transmission, replaced at 140k and a soft overhaul at 260k. Timing chain on the engine just skipped a tooth recently though, so I cannot time it and it's looking like a good opportunity to do a crate 350.

 

210k on my 91 firebird body and motor. Engine has never been taken apart (to my knowledge) all original paint no rust.

 

88 IROC-Z 305 TBI with 215,298 miles, never rebuilt all stock. I do get a stall now and then after its warmed up, and I go to shift to drive or revers, but then I I start it again and it's fine.

 

My 89 TA only has 82 k on it. BUT my 91 k1500 5.7 tbi just turned 330k and still runs strong and uses no oil.

 

I wish I could say the same thing. I get some blue smoke on start up, probably valve seals I am told is really common, and I use about a half a quart every 1500 miles...BUT my valve cover gaskets are leaking too, so that does not help