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CAM Question

  • Thread starter Thread starter jackson0215
  • Start date Start date Apr 24, 2011

jackson0215

Member
Dec 10, 2009
101
3
19
Apr 24, 2011
#1
  • Apr 24, 2011
  • #1
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

2+2GT

10 Year Member
Apr 25, 2009
3,333
10
79
Southeastern Pennsylvania
Apr 24, 2011
#2
  • Apr 24, 2011
  • #2
The exact amount of lift, measured with a dial indicator, will make it a lot easier to figure out.
 
G

gregski

Active Member
Mar 13, 2010
577
0
28
Sacramento, California
Apr 24, 2011
#3
  • Apr 24, 2011
  • #3
jackson0215 said:
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...
Click to expand...
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

Member
Dec 10, 2009
101
3
19
Apr 25, 2011
#4
  • Apr 25, 2011
  • #4
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

Member
Oct 15, 2010
134
2
19
Plainfield IL
Apr 25, 2011
#5
  • Apr 25, 2011
  • #5
gregski said:
I bet it is a stock CAM, because if they put something fancy shmancy in it he would be bragging about it.
Click to expand...



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

j69302

Active Member
Jan 31, 2006
325
1
29
Apr 25, 2011
#6
  • Apr 25, 2011
  • #6
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...
 
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