Just looked up and saw my post from over 3 years ago ...man does time fly!

Well as it turns out I built the motor I was talking about in that thread, how cool is that when wishes find a way of coming true?

Several years ago Steve Dulcich's Engine Masters entry came in 3rd place with the Chapman Stage VI 470" motor, it made 752 or so on the Westech dyno....reported to be 'Happy') I think had the rules allowed for intake modifications I think he could have easily won first place in the 2500-6500RPM contest by using a Max wedge ported Indy 2D.

I modeled much of my 517 low deck off of Steve's EM effort (which was in many ways also very similar to our own Moparts effort), and combined that with numerous machining and tuning elements I've learned over 30+ years of messing with these beasts. I figured if I could get around 90% of Steve's peak HP with more torque by using the exact same CNC heads on a 10% larger cube shortblock, I'd have everything I ever wanted in a Big block.... Wall to wall torque at any RPM or throttle position, razor sharp response and Hemi like top end power from 380 cfm max wedge heads.

My philosophy for street motors is almost always to build the bottom end for torque and put the best available heads on it and them select the smallest cam that will get you to the target power zone. This way you have the most useable overall powerband below the peak which is where you are actually using it 95% of the time. Plus, if I wanted to push it I've got some potential untapped power in reserve.

That said I'm pretty sure my combo is a single plane intake and a similar grind solid roller away from going comfortably over 700, but to me it's not worth giving up maybe 40+ lb feet all throughout the mid range to gain maybe (at most) another 25-30 above 5500. Opinions vary but to me a 4500 stall/5200 flash vert is a waste on the street with a 500 inch motor because you side step too much grunt and it misses the point of what a stroker is really all about.

There may be big blocks out there that may pull a few more HP than mine, but I doubt there's many that are as thrilling to drive when you factor real world roll-on, any gear, any terrain type driving into consideration. I've thought about dropping this motor or a clone of it into something like a Cobra replica just because it's such a blast to drive. It's more like a Viper motor with CNC'ed W5 race heads than it is a drag motor....and that's just fine with me.