So I'm about to build my 347 in the next week or so and I'm gathering together the neccessary stuff.......The base will be a 302 FRPP BOSS BLOCK......From what I've read the best way to get a 347 and have longevity is by getting the 1.63 rod ratio vs the standard 1.58 of a typical 347 build but that requires a 3.25 stroke with 5.315 rods and a 4.125 bore the max on a boss block....so I really don't want to bore a new block that far so ANYONE have an idea where I can get a decent priced 347 kit with a 5.315 rod 3.4 stroke amd .030 pistons forged....I'd at the very least like a cast steel crank and forged I beam rods but a h-beam is acceptable if price is right along with possibly forged crank depending on price oh I'll be spraying to start a 100 shot and add the 150 jets if it isn't fast enough....The Nos kit is already in the car...lol lol that's why I'm having to build a better motor now[:@]

 

check with jasper he just told me he was gonna sell his 347 kit today pm him it sounds like just what you looking for and a decent price for what he has.