88BlueGT

A friend of mine baught a 306 w/ these heads on it. The guy who he baught the engine off of said that they were TrickFlow "Street Heat" heads ??? I have never heard of them before so I just want to ask you guys... plus nowhere on them do they say TrickFlow which I thought all TrickFlow heads were labeled. These are the only numbers that were on the heads... any help?

S/NSB-188-2-1778
A 3639

Any clue guys? THANKS ALOT.

88BlueGT

Also, he said that they were ported before. Is there anyway to tell this? The insides of the ports look kind of scratched up... in a circle pattern going through the ports, kind of like someone ported them but didnt look like a god job at all. If pictures will help I will post them up. LMK. Thanks!

Dan

nmerrill

No clue about the heads, but every set of TF's ive seen sat TrickFlow in their font angled across either end of the head

1995mustang818

are theycast iron or aluminum merrill said they have trick flow at an angle
yea like

1995mustang818

EDIT*****
are they cast iron or aluminum like merrill said they should have trick flow at an angle at the end of the head

88BlueGT

They are aluminum... and they have no writing on them. He said that these heads are discontinued so Im not sure how old they are. Maybe the older TF heads dont have TF engraved ???

88BlueGT

Well, I found out that TF didnt start engraving their heads until a few years ago so I know for a fact now that these heads are pretty old. Any other help? Has anyone heard of street heat heads before?

408guy

Is the intake valve rotated in the chamber? if not its not a TFS

88BlueGT

Not sure... I will check that out today if I get a chance to stop by his house.

cassidymustang

i have a pic of what my ported heads looks like but yes the markings do go in circle all the way through. i can send the pic to you if you want. id post it but dont know how