[FFR428]

The C7OE-K are 427 tunnel port heads.
The C4AE-F are 427 high riser heads.
The C2SE-B are small chamber 406 heads.
The C8OE heads are 428 CJ heads. Look for a letter after the 6090 on the casting number. N are the more common heads.
Quite an impressive list of heads!

The rest are your basic FE heads. C4 and C6-R are lowrisers. The C8-H are medium risers. All good heads. The block i'll have to look up as they don't ring a bell off the top of my head.

If your going to part with any of them I'd be interested in a set of the C4-F HR heads. I'll look up the blocks and get back to ya.

G.