I just purchased a used Schrick Camshaft but then i got paranoid and thought to myself is this the real thing?


Can someone please tell me what I can look for to verify that it's a Schrick and not just the OEM camshaft before spending money on the install.


Thanks!

 

Im not sure, but im guessing easiest way to tell is install, and put the butt-dyno to work.

 

take your cam out and compare

 

I did a quick search but could not find anyone with pictures or descriptions of identifiable markings. Here are the cam specs (I think the duration is advertised, which is considered less accurate vs. duration @.050"): http://new.minimania.com/web/Item/NME6041/InvDetail.cfm.

You can read on cam basics here: http://www.lunatipower.com/Tech/Cams/CamSpecTerms.aspx.

You will need to get a standard micrometer (i.e. dial caliper) that measures in thousandths of an inch. You can pick one up at any Advance or Autozone for $30. Autozone's OEM micrometer model part number is 25362.

Reference the image below. You need to measure the base circle first, then measure the full lobe diameter. Subtract the larger from the smaller to get the size of the lobes. Per the link previously mentioned, Schrick intake lobes are 9.5mm intake and 9.0mm exhaust.



One inch = approx. 25.4mm

9.5mm / 25.4 = .374"
9.0mm / 25.4 = .354"

If your measurements are a couple of thousandths lower, that would indicate normal wear.