Description:

I picked it up this cam recently not knowing what the specs were and after a little searching I found out that it was a Lunati cam and the part number stamped on the cam was at some point revised. I cross referenced Lunati's site and found the specs listed here:

Product Description
Hydraulic Roller Cam.Good high performance cam with lots of mid range torque and top end HP. Fair idle.

Advertised Duration (Int/Exh): 282/287
Duration @ .050 (Int/Exh): 218/221
Gross Valve Lift (Int/Exh): .526/.534
LSA/ICL: 116/112
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 2000-5000
Includes: Cam Only

Part Number: 20540503
Previous Part Number: 55003LUN

The cam is smaller than I'd like, so I'm going to let it go as it may work better for someone else's project. I bet with these specs it would make a very good boosted cam for a 5.3. Great thing with this cam too is that with the lower lift numbers it will work LS6/LS2 valve springs which are good to .570 lift. I recently got my car back together and don't want to go through the trouble of swapping a cam at the moment.

The cam has a different wear pattern than I've seen before, but nothing catches my finger nail so it should be fine.





Stamping on Cam.



Let me know if you have any questions. I'd like to get $225 shipped to the lower 48 states.

Thanks,
Ryan