ok i found a fe engine with heads with huge ports in them they had c4ae 60900 anyone have an idea what these are???

 

How huge? The last 0 should be a letter. C4AE-6090-G possibly? Those are lowrisers if so. Standard head for 64-65. The only other head was the C4AE-6090-F which was the highriser off the 427's. Those ports are damm near 3" tall 2.78" x 1.38" to be exact. Lowriser ports like the G head are 2.34" x 1.34".

 

have to wait until tomorrow to check again but i have a set of c8ae heads and the ports are two to three times the size of them