Jun 28, 2010 · It's not really a question of how much horsepower they can handle, it's more about how many rpms they can handle, with the exception of possible crankshaft shearing in extreme (500+) hp settings. If you look at a typical dyno powerband graph, you will see that more horsepower is achieved at higher rpms. so heres the story.... I'm going to hold of on throwing a turbo kit at my 94 Cobra. I just picked up a rolling 86 lx chassis and I'm going to go with a 351w. How much power can the stock 351 block handle? Are there any good years/ castings? or worse any bad ones? That alone will not be all that fast, but i wanted to know how much boost can that engine handle? I can buy a supercharger for it that puts out 10 psi, but that's very little. I was thinking of getting a turbocharger that puts out about 16 to 20, but dont know if that engine can handle that. Thank you for any help you can provide.

Jun 03, 2014 · Actually, you might be surprised just how much power (and boost) the stock components can take before giving up the ghost. The obvious exception is the notoriously weak factory 5.0L block, but ... Nov 17, 2009 · Is a stock 5.0 block strong enough for a 331/347? If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.