High mileage LS1

[kamaroman68]

Does anybody know what is considered high mileage for an LS1? Thanks Chris

[icebird84]

her are photo of my ls1 after 57705 miles and after a fire



the pistons were not used in rebuild do to luck on ebay Ls6 5,7 pistons at very low cost , but cam and crankshaft use in the build

[TT302Z28]

It really comes down to wear on the cylinders more than how many miles. I have seen LS based engines with 100K miles and almost no wear at all. Then I've seen LS engines with 30K and were junk because they had been abused.

It is critical to have a machinist or someone with the proper dial bore gauges measure the wear in the cylinders to determine just how much wear has occured.

Otherwise it is a guessing game.

[Malibu Jax]

I have an lsx performace book that states that if well taken care of lsx motors are rated up to 200,000. The key here is history and care.

[Ron S]

I've seen several guys pounding on 100,000+ mile ls1's.Ron

[Ummgawa]

I have a LS based engine in my Truck with 247 K miles on it. Never done any thing but change the plugs once and the oil every 5K. These motors are awesome.

[WS6]

I just did heads/cam to an LS1 with 117k on the odo. I'll be dynoing it this coming weekend I hope. Cylinder walls looked great when I pulled the heads.

Like said, it's about care not mileage

[zman1969]

My 99 TA has over 150k on it - mostly hwy miles and runs superb orig owner kept excellent records of all his maint i really figure its good for another 100k