Identifying cast iron trickflow heads

[phallman]

I was wondering if anyone on here new anything about the cast iron high port trickflow heads. I bought a 89 notch has a 306 lunati cam 560-576lift 310 dur. all forged internals 1.6 comp cam rockers. its a carbed set up. The guy told me it has the old trickflow high ports i took the valve covers off cause im swapping out the cam and puting a efi set up back in i just need to no what heads i have on this thing to get another cam the only markings i see on these heads without taking them off are. UAN and underneath that is DU on one head and on the other MAN or WAN with a DU underneath that. they are the only letters i see no other markings is the anything else i can identify on these heads to find out what they are? Please any help

 

[Three50won]

phallman...don't quote me on any of this but I think Trick Flow used cast iron heads back in the day when they were new. Then they switched over to aluminum heads. Do you have any pics you could post? Maybe that will help...

 

[phallman]

Hey Yea i actually found an old trickflow broshure online the heads i have are the actual old trickflow highports they didnt have the tfs------ castings on those heads back then but the heads are identical under the valve cover along with the letter castings in the center of the head. thanks for the reply

 

[NIKwoaC]

I didn't know Trick Flow ever did iron heads. Learn something new every day.