Found This Interesting Page On The Hamtramck Registry

ch1ll said

but what "iron heads" and what did they flow?

they would have to flow well over 350cfm to take a motor over 8k.

Click to expand...

i think I have flow sheets for the DRE 79811 and 77789. They were tested on different motor CID combos.

This stuff I have reference to are one off stuff not available for public sale…. W-2-1/2, W-3, NASCAR heads, Petty heads, “good castings”, etc. I’m sure some are special castings, and some are welded up heavily modified.

These “288” heads may had have the huge rectangular intakes like the Bob Glidden SB heads had. Not sure
The 70 race Trans Am heads had wider rectangular intakes too.