340 or 408?

Newbomb Turk said
Yes. Lots of it. I won’t use a 4 inch stroke in anything.

And I’m sure I’ll have another one on the dyno soon.

I get it. Some guys haven’t learned (and probably never will) that rpm IS horsepower.

I will shift my 340 at probably 6800. That’s street/strip car stuff.

At 7800 you are what I consider a strip/street car.

There probably isn’t 20 people on the entire forum who would want 7800 rpm for anything.

They fear rpm.

They went full Rip Van Winkle and slept through the era where valve train caught up and 7800 for even a decent build.

Using parts like you have you might as well be turning it 6500. Guys don’t get that.

I suppose those who slept through the late 90’s spent their time and money on delay boxes, 9 hit cross over boxes and throttle stops.

That’s on them.

Ok, so I and others (probably after too many beers) have toyed with the idea of building a high rpm, high HP small block to compete in FAST. The idea being it softens the launch and really comes alive down track, (and might allow for some high end converter magic) but the foundation for a build like that is having the maximum amount of head flow the LA architecture can support. Also with equally capable intake and exhaust components. Which I THINK isn’t possible starting with the stock castings and through x head. I just kept coming back to, I have to create the largest “depression” I can at the back of the intake valve. I can do that by longer stroke or more rpm, but at some point velocity gets too fast and things go sideways. It has always been interesting, but I think the box I’m forced into makes it not worth it. If I can create the same level of depression at the back of the valve with more stroke at a lower rpm, what’s the downside?