CAM Question

[jackson0215]

I bought a rebuilt 390 motor and the guy did not know what cam went back in it. They used the good Edelbrock Performer intake, an upgraded distributer, MDS plug wires, and a Holley Double pumper, so from what I can see they used quality stuff. The question is, can I ID the cam without taking it out of the car? That along with the lifters and push rods are about the only thing I will changeout if needed.

Thanks in advance!!

 

[2+2GT]

The exact amount of lift, measured with a dial indicator, will make it a lot easier to figure out.

 

[gregski]

I bought a rebuilt 390 motor and the guy did not know what cam went back in it...so from what I can see they used quality stuff...

That's like a fat guy telling you he doesn't know how much he weighs, or a short guy how tall he is. They know exactly how much they weigh and how tall or I should say how short they are, LOL.

I bet it is a stock CAM, because if they put something fancy shmancy in it he would be bragging about it. Also you hardly ever put a more aggressive cam in during a rebuild and not compensate with matching valve springs, so did he tell you what springs they used? Are the heads stock?

Many guys bolt on the Performer intake and the MDS goodies, doesn't mean they upgrade the guts, pistons, con rods, rings, etc, etc.

Not being a jerk just trying to help, and I hope I am wrong.

 

[jackson0215]

I am OK with stock, I will change it if it is but I did not want to spend the extra money if I did not need to. Stock heads so nothing radical......for now.

 

[HDTony]

I bet it is a stock CAM, because if they put something fancy shmancy in it he would be bragging about it.

+1, when I introduce myself, its always.... "Hi I'm Tony, I run an ed curtis custom cam"

 

[j69302]

if you have a dial indicator and degree wheel you can measure the duration and lift...

Wont tell you exactly what one but it will give you the same idea of how high performance it is or isnt...