318 is on its way out.

search Craiglist for an already-built small block. I see them pop up around here from time to time and it's usually a pretty good deal since they're selling the engine for much less than it cost to build.[/QUOTE]
This is what I did for the 360 in my Challenger. $500 for a fresh machined 360 short block, KB 107 pistons at 0 deck, XE268 Cam, Cloyes Double roller timing chain, brass freeze plugs, I removed a couple of main caps and rod caps to check bearing clearance and all was good. Came with a new timing chain cover and MP Chrome valve covers. Added my heads, intake manifold, carb, oil pan and exhaust. Broke in cam and the engine runs great. Been in the car for a little over 2 years now and close to 15000 miles.
Kevin