cam for the 454, what do you recommend??

[supersize75k5]

I am wondering what cam to get and I need to decide quick so I can get the 75 up and moving again.

block I am messing with is

454,
just bored 30 over
the rest are bolt on's, performer intake, holly truck avenger and hooker headers with 3 inch pipes and 3 inch in/out 40 series flows.

any thoughts for those who have a comp cam extream 4x4 cam?

gas milage does not matter to me, but I dont want something to aggressive for crawling too. Heads are just rebuilt but need to find #'s on them they are stock but opened up some /forums/images/graemlins/ears.gif

any 454 guys out there?

 

[ben427]

you want a roller or flat tappet?? Id really go roller since big blocks are notorious for eating cams. Im looking at a comp cams XR270HR roller cam for my dd, it has a broad torque curve but may be to high reving for a cawler.

 

[big83chevy4x4]

i would go with comp xtreme 4x4 part number 11-239-3 monster torque /forums/images/graemlins/peace.gif /forums/images/graemlins/peace.gif /forums/images/graemlins/peace.gif /forums/images/graemlins/peace.gif /forums/images/graemlins/peace.gif /forums/images/graemlins/peace.gif /forums/images/graemlins/peace.gif

 

[k20]

I went w/ a hydraulic roller crane cam. This is my cam Havent had a chance to drive it more than back down driveway and back up. Been sortin other crap out. But seemed to have good power in those eh, 40ft lmao. DD shows it only gained 70ftlbs from 2k(lowest it reads) to 4k (the max) It is a pretty moderate RPM cam. Mine is in a 496, it doesnt sound too big at idle. Sounds like a healthy BB. You can see if those #'s look about right for ur app.

 

[mountainexplorer]

http://www.compcams.com/catalog/096_097.html

I bought the 2nd on the list for the Xtreme 4x4 (.505/.515) for a .030 over 396. The guy who I was going to have put that motor together said he liked the specs on it. Too bad I havent been able to run it yet, he's had the motor for over 3 years and it's still not done.

I heard a Blazer with a 454 with the largest Xtreme 4x4 cam. It sure sounded good with open headers.

 

[84_Chevy_K10]

In this instance it really only takes one word:

"small"

/forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif

 

[K1Orion]

Ater my experiences with the comp cams 4x4 series , be careful what you do, bigger is't better. The high spring pressures tend to eat lobes. /forums/images/graemlins/mad.gif

BBC will need new valvesprings with almost all cams anything bigger than stock. = $$$

The bigger of the 4x4 cams require dual springs which necesitate machine work to stock heads. = $$$

If I were to build a BBC again I would go with a roller. = $$$ Probably worth it compared to mthe gains. Not sure which cam I would choose though. /forums/images/graemlins/confused.gif