more shortblock questions

[gon4x4n]

Well after weeks of narrowing down between 347 vs 331 and picking a builder, and getting close to ordering a Kieth Craft 331, i've decided to do a little more investigation as to what would be the best route to go.

So this weekend I'm going to take a junk 351w block bolt on my heads and headers and see if it will fit where it needs to in my truck.

So here is my questions:

Does anyone know about 351 strokers? Kieth Craft offers a 357, 393, and 408 which are all the same price. Jason suggested the 408, but i was wondering about rod ratio and life. Should I just go with the 393?

Any info you have would be greatlly appreciated.

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Prerunner F150 with 92' Mustang 302, Aftercooled Vortech S-Trim with 2.75 10 rib pulley set, Maxflow bypass,
Vortech Fuel Rails, Cartech inline Pump with #8in and #6out feeding 36lb injectors, Powerflex 4" inlet tube
Edelbrock Aluminum Heads(2.02/1.60), HIFLO waterpump, 70mmTB, Performer intake, MSD 6ALBTM,
Doug Thorley Tri-Y Long tubes to single DynoMax Race Magnum, C6 with 2600 Stall 4.10s with Lockers,
engine relocated 14.5" rearward!!