[Heavymetl]

A cammed 5.3 with headers and a truck intake will run right with most "built" 383s at your local cruise night. I know you're shaking your head right now, and that's ok. I would have too a few years ago.

150k miles is nothing. In fact, thats about all I mess with. Getting one externally rust free is more important than mileage.

The LS makes plenty of torque down low and carries it over a much wider rpm range than a classic sbc. But I do agree, the classic SBC does seem to make more torque in the sub 2500rpm range.

When compaing the LS to old school, dont judge by driving a stock pickup truck. These engines respond to mods like crazy. Its also not "all in the heads" either. Rod stroke ratio, 55mm cam core, stable valvetrain components, COP ignition, low drag oil pump, replicated ports, long runnner intake, stable block, low tension rings, windage tray, etc etc. They're literally a race engine found in the junkyard. Thanks GM!