Camshaft selection

[MoparMoney]

I'm about to build up my engine for my 4x4. its a 440. I'd like have some info on what would be a good cam selection, duration etc. the compression should be around 9.0-9.5:1. any ideas for suggestions would be greatly welcome.

[Mopar_Mudder]

My 440 is in the same compression range as yours and I started with the MP 272/272 .455 lift cam. It was a bit on the conservitive side was a real good all around cam. The lugging and low end power was great and would still turn in the 5300 rpm area with good power. I just installed a Comp Cam 285/285 .562 lift roller cam and alum roller rockers, wow what a cam. The low end power isn't bad, but anything under 1000 rpm is usless, 1000-2000 is a little less then the 272 MP cam was 2000-3000 is about the same, but from 3000-6000 watch out, mega power their. It should be hitting the 500 hp area now, more is better.

But the roller cam is not a cheap deal to get into, if I were going to go a regular cam again I think I would use the 280 or 284 duration MP cam, the low end will suffer some, that is the reason I went to the roller.

If you have an automatic it kind of changes things as you will need a stall converter of some sort.

You can see my site for pictures and info, I am in the process of re jetting for the cam and will write something up when I am done.

Mopar_Mudder http://disover-net.net/~greener/truck.htm