I pulled the heads off of my '66 289 to replace the vavle springs and seals and I noticed that each of the exhaust ports has a small hex head screw at the top left hand corner that goes into exhaust port.
I have looked at the 3 -4 Ford small block books that I have and have not found any pictures or references to these.
Any idea what they are for??
if it matters, the casting number on the heads is C6OE-M
outside angle
inside angle
I have looked at the 3 -4 Ford small block books that I have and have not found any pictures or references to these.
Any idea what they are for??
if it matters, the casting number on the heads is C6OE-M
outside angle
inside angle