Camshaft Opinion

[m79ded]

Hi

Have a 440 in a 79 magnum. It has 9.2 comp mild ported 452 heads, 1.6 roller rockers, ported and opened plenum cast iron intake with exhaust manifolds. Carter thermoquad, 3.55 gears and 2400 tq.

Cam is a 228/236 112 LSA 520 in it now. It runs well and is making about 13 vacuum. Pulls hard but as always would like a bit more, and by that I meen a touch better drive ability and more in the midrange after all I do most of the driving in the 2500-3500 range. Car does 12.80's on radials at the track as well.

I will freshen up the engine next week and was wondering about replacing the cam. I seen a cam that looks to be pretty good and would like an opinion from y'all.

it's a Crower 271HDP 222/234 486/496 112 LSA

Do you think that will make it more manageable, improve on the mid without sacrificing too much up top?
Do you think it 's even worth going through a minor cam change like that??
Anyone use this cam ????

Thanks

Thanks

 

[67Satty]

The only thing that seems much different on the specs is a little less lift. So I'm not sure you would even notice a difference after going through the trouble of the cam swap.

Your vacuum seems maybe a little low. My cam is 238/238 and it pulls a little more vacuum.

12.80s if very impressive to me for such a mild cam, gear, converter, and using the stock intake and exhaust manifolds in a heavy car. So that thing is running pretty hard as it is right now!

 

[Meep-Meep]

I agree you are doing well as is. Very similar to my 66 Belvedere running a factory unmodified intake and a much smaller cam. If you want more out of this you will need to step up to a higher RPM range. 110-108 LSA cam, deep gears, recurve distributor, headers, single plane intake. Your RPM range will be from about 2500 to 6500 but it will run (until you scatter the bottom end). The 452 heads can work with the right cam and are probably good for about 500 HP easy. But you are not just doing a cam swap. It's the complete package, so unless you are prepared to start over I'd leave it alone. Sell this engine as is and just start over would be my recommendation.

 

[mentor70]

you could try another cam, but you could also mill the heads a little and pick up the compression too, and maybe keep the cam.

that would bring up the torque a bunch.