Technical How do I identify this camshaft? BBC

You look at the cam card that came with it, or look at the numbers on the box it came in.

Kind of hard to do that if no one preserved the paperwork over the years, unfortunately.

 

I think its a B&M model 3848. I've found some BM sbc specs around the web but no bbc.

 

WBM. That's the Wild Big Mother cam

I Google every combo of numbers stamped on there - getting nothing.
If you don't know the manufacturer, may have to rely on someone recognizing that part number layout to point in the right direction.

If you have some v blocks and dial indicator you can get an "approx" lift, see if its stock-ish or race-ish.

Did this come out of an engine ? What's the rest of the build ?

 

90763 is the part number for the B&M big block blower cam in the 1990s....

 

The 3/4 RV version of the Wild Big Mother Boot Thumper Thunder camshaft.

@FatfenderJ
You can measure the lobes and at least come up with the lift numbers.