[Camaro_guy]

Originally Posted by Highboosted

A "seasoned" engine is good to start with, an "old" engine is not. Seasoned means used and rebuilt with new parts, "old" means it just has high miles. Things wear out, and putting more stress on an old engine just makes it kick the bucket faster. valve stem seals start to leak, intoducing oil to the combustion chamber, which will cause knock. motor mounts wear out. bearings get worn. carbon deposits cause pre-ignition. Turbos don't do anything to an engine. Think about it, a turbo just bolts to a manifold and creates more flow than the engine can process (called boost). now, boost causes heat and pressure, which can cause problems if not dealt with correctly. A turbocharger can't mess up your piston rings, but running too much boost with too much timing with not enough octane causes broken ring lands, holed pistons, bent rods, and the like. "fried piston rings" is a fast and ferious term, you cant fry a piston ring, the piston itself will melt before the ring. But ringlands of the piston can break.

My personal opinion, freshen up your engine first, match some bearings to your crank, and price out some pistons and rods, no need for overboard, just safe. Freshen up your head also, new guides and seals. and perfect time to throw in cams of you want. You'll want a new GOOD headgasket and new bolts (or studs if your going for bulletproof).

pistons are good because those high miles causes more "blow by" in the cylinder.