I just got a pair of used cams. They are not marked in any way. should they have HKS stamped on them?

 

Yes. By the way google image search is your friend, after 1 minute of searching I came up with this.

 

From all the hks cams ive seen pics of they do.

 

Every HKS cam I have installed had HKS letters on them.

 

I always thought they where stamped, sounds like someone got you.

 

thats a yes good buddy!

 

from the look of your sig, looks like your running them. how much did you get them for?

hope they're at least for an evo.... sorry i couldn't help it.

 

going in tommorow. the guy seems like a stand up person. he took the time to call me. his car cam with them along with a fp green turbo. he said its a lumpy cam so i guess ill find out tommorow what kind of power they lay down on the dyno.

 

Is there any way to tell if they are stock cams? perhaps a serial number or markings of some sort?

 

Well I spoke with HKS and not all of their cams are stamped with HKS lettering. Some just have a four didgit serial number and some have nothing at all. Some help with identifying stock cams would really help. Thanks!!

 

Stock cams are hollow...meaning there are holes in them.

 

They are all stamped.

 

How can you tell the difference between a HKS 264 and HKS 272 cam by looking at it? Is 264 or 272 stamped on the cam? I am thinking about buying used HKS cams.

 

They are not stamped with the duration.

 

I hope there not Ebay OBX cams. Like already said all the HKS cams have "HKS" ingraved in the cams.