first off i want to know if anyone knows how much power, and more importantly, torque, a 300 crank can take (will be using forged pistons and rods) RELIABLY... it will be in a heavy duty application, but i am trying to figure out what size turbo to use. i started making a compressor map, but am unsure if the lower BTU/higher octane ratings of LP should be taken into consideration when figuring this out.

i am going to run an 8.0:1 C/R, i want to run between 10-15 lbs of boost, depending on whether i'm unloaded or loaded, i intend to run it from 600-4000 RPM (it will see 5 plus on occasion) i want the torque and HP to peak at around there stock parameters (1600-2000 for the torque, and 2800-3200 for the HP) i am debating on whether to use a fuelie head, or a carbed head, it will be o-ringed regardless, but i am leaning towards the fuelie head. i will be custom fabbing a header for this, and am still debating on an intake.

ANY would be appreciated for this. a couple of years ago i did ALOT of research and found company that took over production of the 300 when ford dropped it in i think 99-01....? (i know truck use seased in 96 or 97, but they did continue toi pump them out for industrial use, I.E. generators, irrigation pumps, etc.) and they did offer a model with a forged crank, and had this crank available seperate for purchase. you guys have NOOO idea how difficult it was, lmao, though i also found a guy who would do up a billet crank for like $3000...ish? (WAY out of my price range at the time, and still is now, especially for this motor, lol)


thanks for the help in advance.