robert ratliff

anyone know how to identify stock GM camshafts?

What do do the numbers mean ?

I accuired a cam and all it has is this

17:20
313/12ENG
3064

how do I know what it is other than these numbers there is no part number.

Thanks

G Atsma

Just a question: WHY would you acquire a cam if you have no idea what it is, unless it was free?

robert ratliff

It was said to be a 2011 lsa cam it was priced right and cam with lifters from a 6000 mile car

i plan To use it
but want to be sure first

G Atsma

IF it's an LSA cam, it's not big at all; 198/216 deg @.050, .480" lift. It is smaller than any other car engine cam. It would, however improve on the cam in a LM7 truck 5.3.
What did you plan on putting it in?

robert ratliff

4.8 Liter LY2

G Atsma

Should work well in that engine. What car is it in?

robert ratliff

1972 GMC pickup matted to a 4l80e to 3.53 rear gears in a Dana 60

i plan on getting a new set of forged pistons, connecting rods with possibly a 4" stroke but I'd like to see how it responds with the cam, and then LSA supercharger afterward.

G Atsma

Well, if it proves NOT to be an LSA cam, then LS9 cams are cheap and would work well with the LSA blower.

robert ratliff

I don't have any reason not too believe it's a true LSA cam but it's more for peice of mind.

It seems that no one really has any idea how to identify them though.

G Atsma

You might see if someone has one(like a dealer) and compare cam-end notes. Ya never know....

robert ratliff

lol I thought the same thing! No dealer in arizona has one. All on back order

robert ratliff

Well I saw in another post that the last four digits of the part number were stamped on the end 3064 so I feel better about it.

Looked up part number for said car
matched
pn 12623064

G Atsma

Good to go!