714 heads

Welcome to FABO!

...here's one for ya. Apparently, they're the same head, just a different casting number

http://www.forabodiesonly.com/mopar/showthread.php?t=146460

Small chambers, runners, shrouded intake valve, fast burn chambers. They can be ported just like any other 318 head...if you're interested in that, look up Hot Rod's older article where Steve Dulcich ported a similar set out to 340/360 size runners, cut the seats for 1.88/1.60 valves, unshrouded the intake, and shaved them down to 57cc. They netted like 370 from a 318 with an off the shelf Comp cam, and some modest bolt-ons.

Those pistons are stock 318 fare for that era. Pretty much all 318s, minus a few early years, came with straight flat top pistons...and they would be higher compression ratio except it's probably about .040-0.080" in the hole...maybe 8.5:1 realistically.