230,000
low option 93 z28 no ttops same sixspeed had 3rd gear put in it.
Car was bought new in 93 and one year later had a 383 that lasted to 190,000 miles. My friend drove it 3 weeks after he got his 02 TA WS6 and he said it drives as nice as mine and feels tighter then his 02 TA ttop car with like 200 miles on it. He also sat in the car when i got it and thought it had about 20-30k on it.
I bought it of the original owner at 210,000 miles and its been great, I also have a briefcase full of about 100 reciets for the last 9 years. The guy didn't even change his own headlights or oil. Best part is the guy gave me the CNC heads/RRs of the old engine for free he also gave me the window sticker and dealership reciet for the check he wrote out for the car, paid in full on the spot new in 93

 

166,xxx original engine, terrible opti, been through 3 transmissions.

 

109k and still going for my black 95 Z28! original motor, and auto tranny.

 

Just under 89,000 miles here. '94 Z-28.....M6.....original motor and tranny.

 

125,000 miles and 1 new tranny. same opti though, even though it IS on its way out. I got a oil leak from the rear of the engine, and planing a top end rebuild very soon. Decent times in the ¼ too

 

108,000 and still going like the energizer bunny!!!