72 340
I had a 73 Rallye Challenger 340 when I was a kid. It had a cast crank 340 in it that got spun up to redline every time the key got turned....lol. It never gave one problem, so I wouldn't balk at a cast 340 crank at all unless I was building a very serious race motor that would get zinged out of its mind.
:thumbsup: