I have done my home work on this trust me. 351 are alot stronger than you think. My friends car has a TH400 with plenty of convertor slip. Its allright if you think I am confused. I guess the only way to make you a believer is to finish this project. Plenty of guys have done 800hp with stock cranks, and some with stock rods. That should impress you to what a ford can do. I am not gonna do a girdle as I've been told I don't need one. Currently I have a 78 block, but might get a 94 to 96 block, as many have good luck with them too. Main thing is ARP studs for mains, and heads. Proper bearings, clearances, ect. There is a guy out there with 600 rwhp through a 94 to 96 stock bottom end 184K on it. Did 10.88 in a 4600lb truck. Its fine if you think I am crazy. Thing is I will be at my hp level with less dollars than most of you take to get to less than half. Most exspensive parts are the tuning device, and cylinder heads. Looking at a set of good forged dish pistons, eagle forged H beam rods, stock crank or cheap forged one. I might stop at the 800hp area. If so the stock crank has done it many times. If I do go past that, then forged crank it is. Isn't there a few guys on here with turbo 351s. Heck did you see the 800+rwhp 302, stock block I posted. That thing should have split even in my eyes, but hasn't. I'm being smart and sticking with the better 351ws.