What does an engine rebuild cost and what does it involve?

I assume you want to spend the least amount possible? You could probably do a rebuild for under a $1500. Summit sells a rebuild kit with hyper pistons for around $270 I think. Comes with new pistons, rings, bearings, oil pump, gaskets, etc. Machine work would be around $500-$600 for a .030 over bore, crank ground, resized rods, and head rebuild. I would envest in some ARP bolts (main, rod, and head) for cheap insurance so add another $100. Keep in mind this is reusing all your stock components, cam, rocker arms, heads, intake, TB, everything. And wouldn't be any better of a performer than stock. If I were to do a rebuild like that, I would definantly get some new roller lifters and valve springs as well. Don't forget about tools if you don't already have them like an engine stand and torque wrench. I just rebuilt my first engine and I must say it's not that hard to do at all, but then again I haven't dropped it in and started it yet either so....

Yeah i wouldnt bother i did mine and it was trouble. Id go all out and buy a new crate motor. Like a 347 stroker woulb be nice.