360 crank in a 318 block

Any reason why you don't want to build up the 318?

Don't get me wrong, I love these tangents into custom jobs, but what it winds up turning into is usually twice what you'd normally spend on just rebuilding the 318 you currently have, or building a 360 that may be as readily available, and basically costs the same to rebuild plus some minor additions for 360 mounts/flexplate/converter type parts...

I don't think I've ever seen a "cheap" 349 build, unless my search engine sucks...or unless the guy doing it owns a machine shop and the costs can be absorbed.