Quote: It's not suprising that your wrong,again. Order a PN 20-813-9 sounds like a billet core! That -9 means it is,that's what you are telling us. Wrong.It's a cast core. Again. Wow! What a suprise.
Hmmm ... I'm looking at the Comp catalog and not only does it say -9's are solid billet but that particular core number falls under their heading of "RACE ROLLER CAM CORES - STEEL BILLET".
Maybe you just got screwed when you bought yours at the swapmeet ... I'd have it checked if I were you, it's probably just a stock hydraulic cam that someone scratched that # into!
