High Mileage LT1s
09-24-2012, 12:28 PM
#23
Staging Lane
Join Date: Oct 2011
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09-24-2012, 08:13 PM
#26
On The Tree
Join Date: Jan 2012
Location: Canada NL
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I just bought a 94 Z28, with 94 thousand miles on it with it's 2nd opti spark and still runs good, with no oil leaks..This car has a cold airintake, and a shiftkit, and i'm installing a 3200 FTI lock-up converter over the winter..
09-25-2012, 11:01 AM
#28
The wifes 94 ImpSS has 172k on it. I did H/C at 135k. 1-1/2 yrs ago, she blew a head gasket at the track (N2O). So I figured I might as well rebuild it to a 383. At 135k and when I pulled it apart at 172k, ZERO ridge, bearings were like new, etc. It had been on Mobil 1 since new.
It's been though 1 alternator, 1 Opti, 2 waterpumps, then one EWP motor, 1 p/s pump, on 3rd transmission (this one is a Performabuilt, so we're good), a rear diff, 5 set of tires, one steering shaft and all steering components/shocks. All the black paint is original except on hood (aftermarket).
It's been though 1 alternator, 1 Opti, 2 waterpumps, then one EWP motor, 1 p/s pump, on 3rd transmission (this one is a Performabuilt, so we're good), a rear diff, 5 set of tires, one steering shaft and all steering components/shocks. All the black paint is original except on hood (aftermarket).
09-26-2012, 04:28 PM
#30
Staging Lane
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214,xxx miles, bought it with 198,xxx. leaks a tiny bit of oil. swapped to t56 after 3 or 4 4l60e rebuilds. no real problems with the motor. replaced the rear main seal when i bought it and the ac compressor broke so the ac got deleted. plenty of non-motor problems though, lol.
10-27-2012, 06:14 AM
#31
Hey:
Other than the Opti and the water pumps the base engines seem to last a very long time, it is the other stuff with the car, like switches and window motors that give these cars and GM a bad rep. To bad too as they really are a good bang for the buck.
Dub
Other than the Opti and the water pumps the base engines seem to last a very long time, it is the other stuff with the car, like switches and window motors that give these cars and GM a bad rep. To bad too as they really are a good bang for the buck.
Dub
10-27-2012, 08:30 AM
#32
On The Tree
Join Date: Sep 2011
Location: delaware
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1993 z28 hard top 3400lb 196k no smoke runs strong as far as i know the cars stock . but a odd lop at idle and the cat back cold air intake tune and lt1 vett 4 bolt main block
10-29-2012, 10:42 AM
#33
Mine just rolled 200K on the way back home to Milwaukee, WI from Petit LeMans at Road Atlanta in GA. That trip was over 1900 miles in 7 days and I hit the Tail of the Dragon both going down and coming home. Here's a pic from last Sunday on the Dragon....
