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Recommend a roller cam

garlicbreath

garlicbreath

1/2 ton status
Joined
May 17, 2003
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Location
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I am going through my 91 350 and want a bigger cam. It has Sportsman II 220cfm heads, 1.44 dual springs, 2.02 1.6 valves, performer RPM intake, 670 truck avenger, corvette manifolds, dual 2.25 exhaust, auto, don't know about the converter, 4.56 gears in one tons and 37" SSR's. Right now it has whatever comes stock in a 91 cop car for a cam. I was thinking about the factory ZZ4 cam, it's right at .500 lift but I would need 1.6 rockers to get the lift I am looking for. Am I crazy for wanting .550 lift in a truck?
 
wanting .550 lift isn't crazy, 220cfm heads on that mild of an engine, THAT is crazy. Those are HUGE heads for anything except drag racing, big cubic inches, or big time mud high rpm power.

What is your goal? That is the most important thing, mud racing?(by the head choice thats my guess here) Or rocks?

Do you not care for headers? No manifolds, not even rams horn manifolds, flow great compared to a good set of long tubes.
 
sled_dog said:
wanting .550 lift isn't crazy, 220cfm heads on that mild of an engine, THAT is crazy. Those are HUGE heads for anything except drag racing, big cubic inches, or big time mud high rpm power.

What is your goal? That is the most important thing, mud racing?(by the head choice thats my guess here) Or rocks?

Do you not care for headers? No manifolds, not even rams horn manifolds, flow great compared to a good set of long tubes.
Click to expand...


A bit of both, I don't do crazy rock trails, mostly trails with some mud. I am in upstate NY right now so it's mostly mud. I did manifolds because I got tired of blowing out gaskets, listening to exaust leaks, and burning up cheap starters. I haven't had ANY problems with these manifolds at all. Plus they don't seem to put as much heat into the engine bay. With the stock cam, which someone said comes in at .403 lift it ran fine, no torque issues at all. It gets driven almost daily in the summer, with 85% being street and the reat trails. Just because there is really no place wheel here in NY. The greenies have shut just about everything down and monitor the club websites just bust any new trails. I have to drive to Paragon in PA just find something decent.
 
I ended up finding a stock zz4 roller cam pulled from a new crate motor for 89.00 couldn't pass that up. It has around 490 intake and 510 exaust so with 1.6 roller rockers it should be nice.
 
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