Going through some old valve train parts I have here. I found both of these set amongst my parts. The black ones are brand new and are marked DOWN on one side with nothing on the other. The other ones have 05 and P marked on one side and down marked on the other. They seem to have some abnormal wear. I am 99% positive these came off my old 94. Now I don't know what sets are what. I know I bought a set of Combination Motorsports and a set of LT4s. Can someone tell me which is which, and why I have wear like that on the one set?

 

The ones on the left look like the non-hardened GM guideplates. Then again it's been 6 years since I saw a set, so I may be mistaken.

 

got a clear number somewhere and i can look it up for ya

 

The ones on the left absolutely are the shitty unhardened GM bowtie plates. Dont know whats on the right but they do NOT look like Trickflows.

 

Ok so the black ones I am guessing are the Combination Motorsports set? Should be good to use correct? CC 1.6 7/16 Pro Mags