Help with cam selection..

[efriedrich]

I have a 78 318 that has around 80k miles on it, could I use either one of these cams with the stock valve springs. My plan is to add a factory 4 barrel manifold, thermoquad and headers. I also need to figure out a torque converter, I have 3.21 gears.

http://www.summitracing.com/parts/sum-6900/overview/make/dodge

http://www.summitracing.com/parts/sum-6901/overview/make/dodge

 

[MiradaMegacab]

I've used the 2nd cam you listed in a 1983 318 with stock springs. Worked well. I did have valve float above 6500 RPMs, lol

 

[efriedrich]

6500 rpm, lol

 

[jasperjacko]

I don't know with low comp.

 

[8d5 AHB]

Get ahold of Comp Cams either via their website and/or call them. They'll ask specifics such as compression ratio, tire height, gear ratio, intended use, et cetera and give you a recommendation


http://www.compcams.com/

 

[Shorty Thompson]

The first 1 should be ok ,

 

[klb6469]

The Comp cams 260H is the cam to use, for the low compression 318. Thats what is in my 318, with headers, intake, and Thermo-Quad. Totally different beast. Sounds good too.

 

[Shorty Thompson]

Ah hell . Just go get a 340 , 6-pack cam in it and be done with .

 

[MiradaMegacab]

U can never over cam an engine, lol, if u do, just add something to overcome that miss match. Like a 250 shot of N2O, or a blower or a trans-brake to get u over that off the line bog.... Or just add all three of listed secrets and enjoy ur cam. Lol