I was wondering what a pair of stock 406 medium riser heads would be worth? this is the description of them I got...

" They appear to be in pretty good shape! I don't believe that they have ever been disassembled, so they will need hardened seats and guides of course, but he really was not asking too much for them."

thanks, kyle

 

Not knowing.... I thought the 406 was done for before the medium risers came about.

 

C2SE-6090-B, C2SE-6090-C are 406 heads. Also the C3AE-6090-C has a version with spring cups and smaller chambers. They are low riser heads and use 1.65 ex and 2.02 intake valves. Alot of guys try to pass off the standard C3-C heads as 406 heads so be careful what you buy.