gun4hire

I tried searching via google and can't seem to find anything.

When it was sold to me, I was told it was an LT4 hotcam. However, when I previously sold it the buyer told me it was not (he thought it might be a ZZ4, but was unsure). I obviously gave him his money back but now I'm stuck with a cam and have no idea what it is.

It appears to be a GM roller cam, but beyond that I'm at a loss.

Here is a pic of the end of the cam.



Thanks in advance for any help you can give.

camaronutt

did some searching and came up with nothing also. Its a mystery. are there any more stampings or anything on it??

camaronutt

I just happened upon this info on a cam called a ZZZ from GMPP:

part number: 10134334

ZZZ Hydraulic Roller Tappet
This hydraulic roller tappet is used on the 5.7-liter H.O. engine assembly for ZZZ through ZZ2 engines. Use with spring P/N 10134358. The duration at lash point in degrees (intake/exhaust) is 336/336; duration at .050” tappet lift (intake/exhaust) is 235/235; and maximum lift with 1.5:1 rocker ratio (intake/exhaust) is 480/480. Valve lash is zero/zero and lobe centerline is 114 degrees.

NOT positive on the match, but it has the last three digits of the part number stamped on the cam as all GM cams do. Heres the link: its the fifth one down from the top.

http://www.sallee-chevrolet.com/Camshafts/index.cfm

gun4hire

Well, thanks a bunch! That's a lot better than I came up with.

gsf_87iroc

You could do a little measuring with some calipers to determine the lift on the cam. If it matches or is close, you may be there.