I was helping a friend of mine with his 57 TBird, "C" model (292). We had the intake off and noticed that the heads had the casting number ECZ-F. Anybody hear of these. What is the original application? Big valves or not? Thanks for any info.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

This is what my parts books and casting number books says:



Years       

1957    



Models & Cubic inch

A (with S/T & O/D)    292

S (with O/D) 312        



Part #

B7A 6049-D    



Cast #

ECZ 6090 F



I have collected them to http://www.y-block.info


Tero from Nurmijarvi, Finland

56 Country Sedan, 61 F-100, 61 F-600, 55 F-620, 52 Mercury

http://www.dlc.fi/~teros

http://www.y-block.info

http://www.hollowheads.net

http://www.fordnationals.net

Is the date code obvious on the ECZ-F heads?  Try looking for the date code either on the exhaust side of the heads or under the valve cover.  The ECZ-F heads do have the same valve sizes as the ECZ-G heads but it’s unknown to myself if they are posted or unposted or actually came both ways as is the case with the G heads.  Also not known is the combustion chamber cc’s or volume so it would be some good information if these are measured if the opportunity arises.  Gut feel says the F head has larger combustion chamber volumes than the G head based on its standard transmission applications.

Lorena, Texas (South of Waco)

Thanks - I'm not sure I can get the date code as its now buttoned up.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ