Degreed cam help

[71RR]

I just pulled my wedge down to see what was in her, since she has never ran good. I found a degreed cam set at +2. Do you just hit and miss at this or is there a way to know why you set it at a particular setting? The cam has purple on her and the number 260022 on the back of the cam. Anyone know how to trace out what cam this might be. Thanks.

 

[WileE]

I just pulled my wedge down to see what was in her, since she has never ran good. I found a degreed cam set at +2. Do you just hit and miss at this or is there a way to know why you set it at a particular setting? The cam has purple on her and the number 260022 on the back of the cam. Anyone know how to trace out what cam this might be. Thanks.

If it never ran good, it may not have been done correctly. Degreeing a cam is not hit-or-miss. Then again, that may not be why it never ran good, as well.

 

[67 B-body]

To correctly degree your cam, you need a degree wheel, piston stop, The manufactures installed point or a dial indictator with magnetic base to measure lobe lift, and a timing set that allows you to use offset dowl bushings or an expensive belt drive system that has the adjustable cam gear.
I think what you have is the timing set with the crank gear having three positions for keyways. These are OK for just wanting to dial in 4deg advance with the intensions of lowering the RPM "band" a few hundred RPM.

 

[67 B-body]

BTW, there are plenty of videos out there to walk you through the process....

 

[Meep-Meep]

2 degrees is pretty much in the noise and most likely won't make a hill of beans difference in performance. I don't think that cam number will do you any good. Measure the cam lift to get somewhat of an idea what it is. The lifts on the purple shafts is far enough apart that it should be easy to determine what you have. Of course nothing is a substitute for degreeing the cam. Also you should CC the heads and piston at TDC to get accurate compression ratio.

 

[71RR]

This motor, as I reported in another post, the pistons would close the ground strap on the spark plugs if not degreed right. I am going to pull the heads and see if they are milled too much, or domed pistons or something. I am thinking about aluminum heads and a known cam, as in the one I took out I cant identify. It has the # 260022 on the end of the back of the cam. Not finding any info that tells me who or what the cam is. I will just go with a good recommended cam from the experts here, hydrolic for sure and a set of alum heads. The 2x4 intake from edelbrock 28 I think. Might get me to the store and back anyway. Thanks.

 

[451Mopar]

If you degree the cam it will give you the information your looking for.
When degreeing the cam, you can find the installed intake centerline, and also measure max lobe lift (multiply by the rocker ratio to get valve lift), and the opening / closing points at several points, like 0.006" tappet rise (advertised duration), and at 0.050" tappet rise (the 0.050" duration.)