So here are some of the comments that were on the original thread, the voting for a stoke stroke or stroker 340. I love this ****!
"it will be more of a challenge to pull off a 550HP 340" Maybe not
"for that many hp, you need to increase the cubes as much as possible to keep the rpm in a range the valve train can live a long happy life" 6300 is just right
"So when selecting power you want depends what you consider streetable but probably in the .9 to 1.2 hp per cid (408 would be 370 to about 500 hp) street strip 1.2 plus hp per cid" 1.56hp per ci, and streetable
"A 375 hp 408 that puts out 475 plus torque makes a very nice street engine" Id rather have 539 and 476 LOL
"The best 371 I ever built and tested made 489 ft/lbs @ 5400 rpm IIRC and 542HP @ 6900 rpm. I don't know if I have anything in my bag of tricks to do that with a 27 cube deficit. This will be interesting for sure. That 371 in above post was 10.8 static and cranked 195-200 psi --this is borderline pump gas" 9.8 static and 165psi cranking pressure for this 340
"I think, if streetable is to be considered (by a buyer), then you will need to rev it higher to get that figure. Only way to make those figures are more "bangs" per minute. So make it happen and share the particulars. I'm a skeptic - I'll say it's not a big deal on a dyno to make that number with any package. But in a chassis - as a 340 - with a 7K peak? It's not going to happen without some rather fancy tricks and systems. In other words - lots of money and not streetable for the vast majority of users" Still a "Skeptic"?
