68 dodge slant 6 2 v8

5.7 hemi is 100% correct if you built the 904 right it will last but if it's just something you wanna throw a quick rebuild on and beat it up 727 all the way, much more durable and stronger for a lot less money as far as parts go. Your boy wasn't lieing man, if you need something answered about an A body, this is the place to be. Good luck on your project man!! keep us updated