I was wondering if there is any information on Identifying a cam. It came out of a 70 455. and the only number I can make out is 1382146 with a CWC. From what I can tell the CWC is the maker and the number is just a generic casting number, is this correct? How else would I tell what is it could be?
I found this listing on Ebay. Seller says it has the same casting number as yours, https://www.ebay.com/itm/NOS-GM-197...=true&nordt=true&rt=nc&_trksid=p2047675.l2557 According to Dennis Manner though, that casting number doesn't match for a Stage1 camshaft, Stage1 cams can be ID by this groove behind the 1st cam bearing,
I have never had the motor running, or heard it run. It does not have the stage one groove either, but it did have a set of stage one heads on it, with a B4B intake and flat top high compression pistons in it. (I think) they are flat with the notches for the valve clearance. If that means anything. To put it on a lathe with a dial indicator the best way to tell what it is or assume it is a stock for the 455 and start with a new one?
Okay, I will have to read up on how to properly execute that. Or is that something best left for a shop to do that?
Buy a cam degreeing kit from Sumitt or Jegs, http://v8buick.com/index.php?threads/camshaft-degreeing-101.220945/
Is there a number on the back of the cam? If the number you list is cast into the cam then it is just a casting number. If you get the degree kit Larry suggests you aren't really "degreeing" the cam. All you want to do is determine what the intake and exhaust duration is at .050". If the numbers come up like a performance cam then you can look into it a little deeper. If you plan on reusing the cam don't mix up the lifters. If you have a set of calipers you can get a quick idea on what the lift is. Most stock cams are barely above .400". If you are approaching .500" or more then the cam may need more looking into with a degree kit.
