Cam ID help

[John R.]

Hoping someone can decipher the following stamps on the end of two used cams:

Cam #1: 725 U
Cam #2: 118 which is above M J 233 there is a faint 1 at the end of the 3 sob may be 118 M J 2331, but not sure is that's actually a 1 or not.

No GM casting numbers on these.

[Jack H.]

Re: Cam ID help

Just a couple wild guesses on Cam #2. 118 degrees is a fairly common lobe separation angle and 233 (.223) could be the cam lift? Another possibility is that CS118R is a SpeedPro part number for a mechanical tappet camshaft for a small block chevy.

[Duke W.]

Re: Cam ID help

They're probably both aftermarket. What, if anything is molded into the casting? Can you confirm that they are for Chevrolet engines? Small or big block?

118 is not a common LSA; 106 -116 covers a wide range of aftermarket and OE cams with typical aftermarket cams at the lower end of the range. OE SHP type cams are 110.5 (Duntov) to 116 (LT-1).

Duke