hyperzone

There is a rebuilt engine ready to go in my car but, I just found out there was a screw up and the wrong cam was put in. I know the very basics of cam numbers and stuff but, I have no clue as to what they equal performance wise (no experience). How big of a difference???

The engine has ported heads, 2.02"/1.60" valves, and 110 lb. springs, 1.5 stamped rockers, and all new stock'ish bottom end. Here's the cam spec's I have:

The cam in it right now:
- 209/214 @ .050
- .490 lift
- 112 lobe center

The cam it was supposed to have:
- 222/232 @ .050
- .501 lift
- 114 lobe center

96capricemgr

iTrader: (1)

I see a lot of scary things in your post. MOST good LT1 heads use 2.00/1.56 valves, bigger is not necessarily better. 110lbs on the seat is not enough to run a decent hydraulic roller cam with that heavy a valve, might be enough for the smaller cam you listed IF the lobes are lazy enough. That cam might be a nice mild cam I ran a ZZ3 cam for a few years at 208/221 .474/.510 112 was nice but left room for improvement even if looking for stock manners.

The second cam with the 114 LSA I would call a mistake too, you want a mellow idle go smaller duration, spreading the lobes to tame a cam is a wonderful way to make crappy power.

BlackScreaminMachine

iTrader: (17)

I am assuming this is supposed to be a N/A set up, a 114 LSA is going to Kill the low end torque. if budget permitting, Id get 1.6 roller rockers, something with a low to mid .500's lift, 220/230 duration on a 112 lift with proper springs and it will be a fun ride.

hyperzone

Damn, I'm seeing scary things in YOUR posts... hehe... Well, I'm not quite sure what I'm going to do. I was originally going to make some calls and see if I could work it to get the one I was supposed to have swapped out/in. You make it sound pretty bad,.. Would I be better off looking into something that is more 'tried and true' like a CC305, CC306, GM847? Any recomendation given what I mentioned with the motor and the supporting mods in my sig?

*It is a N/A setup and emissions are not something I'm worried about. I was looking for a HP goal of 340-370.

96capricemgr

iTrader: (1)

Might try 1.7s on that baby cam pushing the lift to .555 or so and upgrade the springs. Would idle amost stock but pull like a freight train if you can hook.

If you buy another cam there are a lot of choices out there IMO something like the 846(not the 847) would be nice for a mild 350/355.

Anything you do though is pretty much going to require different springs and roller rockers would be a good idea, on my old setup I ran ProForms for 40-45K I think and they came out fine so you do not have to spend a lot. If you go aggresssive on the cam and springs though then look at something like the ProMagnums.