Originally Posted by AndyF
That combo is probably all done by 6000 rpm. You can push it past that if you want, but I doubt the car will go any faster. Try it and see what happens. My guess is that you'll want to shift it at 5500 to 5800 with a rev limiter of 6100 or 6200.


I agree!!!! Shift it at 5500-5800 and you could shift this thing anywhere from 5 to 6k and it won’t change your et much if any. I don’t think you’ll hurt anything shifting it higher but there won’t be any point. I had a 511 with 11.5 and mild ported heads with a 274@050 solid and even it was done @6k. The cylinder heads were just out of breath no matter the cam size.
There’s very little point in stroking with a standard head. Other than it doesn’t cost much more. I did it because I plan to upgrade the heads and these were what I had for now.
I moved these heads to a 440 stock stroke in a truck and with a 232@050 roller they are still done at 5500. Made 490hp@5200 and 554tq at 4000. It’s a nice flat curve and pulls hard.

I think you’re making decent power for bolt on source heads. That would be enough for really low 11s in a. A-body.

Last edited by viperblue72; 07/07/19 03:51 PM.