100k right now replaced water pump and radiator at about 97k other than that no problems, but it does have a tiny oil leak nothing major though

 

88K on the 94 LT1 in my K5, put an opti on it at about 86K, but it sat in the garage for a couple years

 

55,300 miles.. Only thing I've replaced because it went bad was the water pump and drivers side window motor.

 

I had 153,000 miles on my stock 94 B4C. I bought it with 103,000.

Everything on it was bone stock from the factory. I used it as my DD, and raced it about once a month at the track. At about 130,000 I rebuilt the tranny after the clutch packs finally burned up. Water pump went out on me at 140,ish so I put in a new Opti as well. Otherthan that, I was able to beat the living hell out of it everyday and the thing never complained. Routine maintenance kept it happy. I bought the car the day I turned 16, I still have it, and it's the only car I've ever owned.

My brother has a 1994 Chevy truck with 367,000 miles on the stock drivetrain (not an Lt1, but impressive nonetheless for a SBC). Just routine maintenance. It still runs amazing. He commutes with it 80 miles a day, and we use it as our work horse since it has a lift-gate.

 

72,000 miles.
AC compressor locked up right before the warranty ran out at 35,000.Got lucky on that one.
waterpump at 69,000
drivers side window switch.
small intake manifold oil leak
rear defrost switch does not work
when I get on it,my drivers seat sometimes shifts back just a little bit?Dont know why.
Other than that it's been a great car

 

Have 51K on mine. Did plugs and wires around 35K. Needed a new Opti at 45K. Have a small oil leak from the front main seal. When I had my 3.42s put in, we saw that my axle shafts were bent, replaced those. That's it.

I think everyone's LT1s are different. For example, some guys get 200K out of their Optis, but others... like me...

 

128k and keeps on ticking.

Stock OPTI!

The only problem I've had is the stupid *** VATS system. Disabled it and it's been fine since.

 

Just sold mine with 166,000 on the clock.

 

175K. Replaced an opti about 5K miles ago.

 

112,000 miles

Aside from normal wear and tear (fluids, filter, plugs, etc.), I've replaced the following because the old part was broken:

opti around 90K
water pump around 90K...had the opti out anyways..not sure if leaked
tranny doing it NOW...slipping at WOT
control board that turns on the fans around 80K...fans not coming on
AIR pump...60K...under emissions warranty
switch that turns on parking and headlights
window motor
window switch

That's all the major stuff that has gone out so far, which are all pretty common in our cars. Cross my figures, but haven't had the big ones yet, like spun bearings, intake gasket leaks, broken valves, etc. But again, I don't have the crazy hp that some of these guys on this board do.

 

109k-opti replaced 3k ago.

All leaks fixed(rear intake/WP seal)-dry as a bone underneath!

I drive it about 15-20k a year.

Very reliable cars, if looked after.

 

1994 Z28 - currently has 228,000 miles - purchased at 224,000 miles 4 years ago.
Previous owner repaired replaced that I am aware of:
Opti
Fuel pump
O2 sensors
Ignition control module
Cat
rebuilt trans

Since I have owned it:
Pinion seal
Waterpump
Rebuilt original motor with new heads (because of water pump above)
New cat
new O2 sensors
Idle control motor
throttle position sensor
Opti (again)
Rear gears (by choice)
PCM (due to my attempts to re-program)
Rebuilt trans
Brakes all around

 

'96 Z28-88K miles

-needs water pump
-rear main or oil pan is leaking
-replaced oil pressure sensor
-replaced inlet/outlet from heater core to WP (flow restrictor broke)
-10 bolt is F'ed up
-could use a clutch

 

138,000 on my trans am
had 181,000 on my 93 Z28 before someone thought red means go and smacked it in an intersection

 

Bought it when it had 40K and now it has 55K on it. mind you, she's driven 4 months outta the year though. Bought it 3 years ago