pdxmotorhead

In my local area there are 2 shops that specialize in "packaging" LS motors for swaps, they take a basic yard motor dropout, clean up the harness, Put a stand alone tune on the ECU, they offer some basic upgrades, and will go wild if you want. ($$=HP... ) Maybe start googling for that kind of service in your area? It kinda reduces the chasing stuff..

A basic engine < 140K miles with the harness and eco starts about 3200 bucks. That motor has had the heads pulled, new MLS gasket, and a lot of checking out..

40flier

An A body, 60's-70's clone car ideally, hopefully integrate A/C, pretty much a daily driver not ashamed to drive to a cruise nite. Respectable power. Friend just paid a lot of $$$ for a 69 Camaro resto, he was tired of dealing with an old big block car. I'm liking the idea of doing my own?

40flier

Still viable at 140K? Didn't know they'd last that long. As for HP, I know it takes a helluva lot to run even with the average base C6 with traction control, etc.

G Atsma

Many are still viable at 300k. The weakest LS engines are the early LM7 truck engines and they are good for 280-295HP. So no matter which one you choose, it will likely far exceed any stock late '70's and early '80's 305 or 350.

LLLosingit

iTrader: (4)

I worked the last several years in the auto salvage business and most check out pretty good in the 100,000 to 150,000 mile range, At 150,000 to 200,000 it's not uncommon to find a wider average when doing compression or leak down tests. When you get above 200,000 it's a crap shoot, They will still run good but typically show signs of wear in the rings,valve guides and seals. Sadly we crushed good 4.8 and 5.3's all the time and even a few 6.0 that ran fine when they were brought in but people pull parts from them rather than pull the complete engine.