After reading some about the 98 LS1's having a "weaker" oil pump than the later models, I was just wondering. How many of you out there have actually had one fail in your 98? Anyone have a 98 that is holding up well over 100K? I know the motor is up to it, I am just basically addressing the oil pump issue.

 

Replace the oil pump if it worries you. It doesn't me, but if I ever do a cam swap, I will replace it....

 

I replaced my '98 LS1 after 73K miles with an LS6 longblock. It started knocking...I have no idea why and it's still sitting on a stand in my garage and I never opened it up to check. I did the swap in July of '04.

 

It will last aslong as u take care if it there are a few 98 ls1 with 150k still runing strong

 

The only thing I had to replace was my water pump on my '98Z. Other than that, I haven't any other problems.

 

I have a `98 with 105K and all I've done is replace the water pump at 88K
Oh Ya and I am still running the original clutch.

 

My 98 has 74k with over 100 passes with the stock oil pump & I shift it at 6800.

 

Just passed 120k on my 98 LS1 in the AZ summer heat. Only thing changed was water pump at 80k. Still have good oil pressure.

 

my LS1 has 87k miles on it and i have had to replace the alt. the thermostat and the clutch, and an seal near the knock sensor (dealer did it nice 800 bucks!) Other then that though she hasnt left me walking.