Ford Y Block ANGLE MILLED race heads

[Mummert]

A more in depth look at what we have been up to lately.

[Tuner]

I need a pair of these heads and a time machine so I can have a do-over about 60 years ago.

[Mummert]

You could of tried one of these while you were at it.

[Tuner]

I guess my G heads and dual teapots will have to do.

Which is the better head, ECZ-G or 5257 ? (or was that 5752 ?)

[Tuner]

This sort of answered the ECZ-G 5752 casting marks question, except I think in the backwhen days I saw original unmolested '57 312s and 292s with 5752 heads. Perhaps not and I simply noticed they have the same valve size. Been a long time.

http://www.ford-y-block.com/cylinderheadchart.htm