With stock heads ( the bottle neck ) and even a bigger then stock Cam the HP peak has come & gone by 5400 rpm and with the stock oiling system I would not spin the motor up passed 5600 even though the Rods would likely hold to 6000!
Ok, I’m getting some TA Performance heads soon. I think I’m gonna go with 455 heads to go with the cam I have 290 94h
with a C-115 cam and headers/intake and not much else, my 455 makes power up to 5500, but I find that shifting at 5300 doesn't seem to make it any slower. 5500 is a good redline to work with for most street/strip BBB's.
Unless you've changed the 0il pressure relief spring(at a minimum) I'd consider a redline of 5000 rpm about it. That is about it unless you like the sound of #7/8 rod bearing rattling. The factory spring is only rated at 40 lbs. Get a Stage 1(white) spring in there at least. However if you've beefed up the oiling system I'd say that cam is going to make peak power right around 5300 no matter what heads you have on. The better the heads you have the higher the power peak will be and the wider power band it will have, starting earlier and ending later. A good spot to shift would probably be around 5500 though.
Ok I will do that. I’ve been meaning to do for awhile but just haven’t. The one on my console works but like you said I need a real one
I call it a C-115 'cause its really a C118 on a tighter LSA .. It's choppy, but I cant compare to the 290-94H . Goes like hell, though. I've got some kind of converter thats maybe 2800-3000, came with the car.
How to determine "Max RPM". 1. Push the skinny pedal to the floor. 2. Note RPM where pistons start swapping holes. 3. Subtract several thousand dollars from your bank account. 4. Somewhere before all this occurred is the "Max RPM" for you wallet.
