360 cam upgrade (1973 low comp)
My idea and experience:
- I've turned stock springs 5500 rpm's many times.
- You need more cam with that converter and gears. I would look for a bigger cam, 230 duration @50, and around a .460 to .470 lift. One time I put a 280*(advertised)/.474 Mopar cam in a stock 318 and added a 4bbl. No issues with springs or too much lift. You loose lift with the stock rockers.
- I would not run those gears, even if you up the cam some. I ran 4.30's behind a street 360, and then I changed out to 3.91's and the E.T. didnt' change at all. Nothing. I would go 3.23-3.55 gear.
- I wouldn't run that converter with the engine you are doing. I would back down to even a stock 904 from a slant or 318. Just balance your flex plate.
- You could sell the pieces you have and should have enough money to cover the cost of the changes.
I'll keep the trans, and converter. I plan on doing a little more potent 360 later but for now I'm going to have to run what I have. I am however going to a little stronger cam than I posted earlier. This isn't a daily driver but more of a cruise night project for now. I have run 4:10's in big block B bodys in the past with no complaints but this being my first small block I'm learning a hell of a lot. Thanks for the info/advise.
