hi all I have a set of nos y-block heads I see the cast number reads ECR-E does anyone know what these heads are having trouble figuring them out if they are a performance head or standard thanks

Sounds like you may have a set of 56, 292 posted heads. Check John mummerts site. He has a listing of heads.
Rowen

Rowen
55CV
Woodland, Ca

How about a picture?

Go down about 21 items from the top of the list, Cliff.

Click the link below...
http://www.ford-y-block.com/cylinderheadchart.htm

Hope this helps.  


NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

Hi, I think what you have is a set 1957 Ford 272 HD (large truck) cylinder heads ( a picture will tell) look at the size of the valve guides.