I have no idea what cam to get. I am assuming it will have to be a custom grind. I want hydraulic roller.

Here is what I have

383 .060 over
wiesco pro tru pistons
6 inch rods
Heads decked .040
Roller rockers 1.6-7/16
Beehive springs

I want it to hit hard and make some power. I will have at least a 4,000 stall converter. Anyone have any ideas on some #'s?

Thanks

 

to make use of a 4k stall, you will need a cam with around 240 duration and about .600 lift

 

ok cool. Should I just call comp and tell them this and they do the rest? Im kinda lost when it comes to this part and I would hate to put in something that doesnt make the most power.
Thanks

 

Define "make the most power". Explain how the car will be used.

You can put in a wild cam, and make big peak HP at very high RPM. But your bottom end is going to be soft. If you are after peak power, go wild. If you are after good "area under the curve".... a good balance of lower RPM torque, and high RPM power, look for something a bit milder.

What is comes down to, is how will the car be used. If its only going to be driven at the track, operating between 4,000-7,000RPM, wild is the way to go, assuming your heads can support it. If you are going to drive it on the street, you're going to want something with a little more balance.

Not sure why you assume you need a custom cam. Look over the grinds available at the leading cam companies. They offer guidelines on the useful RPM range of the cam. Not an absolute answer, but will provide you with a better knowledge of what is available.

You also need to provide a bit more info about the heads, compression ratio, etc..... most of what you listed is not going to affect the cam selection.

 

ok guess I need to do some more research haha. The car will be both track and street. It more or less is going to be a weekend car and not everyday or long trips. Just taking it out and pissing people off who dont like loud cars.

As far as the heads, the guy that did them put them on a flow bench and sayed they were out doing edelbrock heads. They are the stock aluminum cast worked up. As far as compresion I wont know that until the shortblock gets assembled which looks like it will be another week or so until the guy does it.

Guess I need to just sit tight and wait till I get my motor back with the compression.

 

if i were you i would call LE at Elliotts Portworks and he will get you were you need to be

 

That probably the worst endorsement I've ever seen for a set of heads. The Edelbrock LT1 heads are claimed to flow 242CFM at 0.500, and stall above that lift.

 

Lmao

 

Im not sure what you are saying. The heads I have are good for over 600 lift.

 

Your mechanic compared your heads to the Edelbrock heads. Edelbrock heads are dogs. They stall above 0.500 (flow DECREASES). Not even as good as a stock LT4 head. Yours may be better.... but my point is if you want to hold your heads up against some other standard for comparison, the Edelbrock heads are not a very good choice.

 

oh I realy do not know much about how all that works but from what I got out of him and some other people that saw them, they are supposed to be real nice for a stock set of heads that are worked.
Here are some pics of the heads. I am not sure what the #'s mean. Still learning some stuff.

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The info written in the end of the head tells you the max lift allowable for the valve springs is 0.620", and the spring pressure at 0.000" and 0.600" lift. That will affect your cam lobe and rocker arm choice. But that does not indicate the head flow capability at 0.600". You should have a flow chart for the heads, showing the depression used for the test and the flow in CFM vs. valve lift.

 

I dont think I have a flow chart but I will keep looking thru my reciepts.

Is this the only cams comp makes for LT1 without having to get a custom one? http://www.compcams.com/catalog/086_087.html
The top box (hydraulic Roller is what I want)

Thanks