Roush vs 427FE vs Keith Craft

[blykins]

Well, he may get *it* but that *it* may not be what we're talking about.

You both are making too many generalizations, and they are all wrong. I'm really sorry, but you can't make a general statement that says all small blocks "out-rev" all big blocks.

That is absolutely incorrect, I don't care what physics books you are reading.

What I *think* you are trying to explain is how well an engine accelerates. You can absolutely tell that on the dyno, and on a dyno that is fully computer controlled, you can plot it.

And Ed, you are correct in that you can build a 385 series engine that can out-rev a SBF. You just proved the generalization wrong.

Now unless we are all talking about different things, which could be entirely possible, I still fully disagree with both of you.

I have a very small displacement FE here in my shop. The crank has been lightened. The pistons weigh less than 375g each. The rods are the same weight as some SBF rods. It can, and it will "out-rev" and out-accelerate many, many SBF's.

I have also built many long stroke Windsors, which is I think what was referred to in the first post that spoke of this, with a Dart block. I've built 427's, 438's, and 445's, and I will tell you *by experience* that some of the bigger FE's that I build out-accelerate them. Hands down.