Ford Y Block heads

Having isssues with the heads on a new build Y 317 CID (312 + .030) w/ 10.2:1 compression.

Need a set of rebuildable big valve heads with casting numbers 5752-113, 5750-471, B9TE, B9AE, ECZ-A or ECZ-G (Posted only).

TC
Austin, TX
512-968-0133

 

You may want to look into the casting numbers that your looking for as far as compression ratio goes, the heads that you have listed range from 69 to 82 cc's for higher compression motors with big valves you need the ECZ-G (69cc) heads. the 5750-471(82cc) heads would be more suited for a blower motor or to lower compression. I may have a set of ECZ-G's left somewhere.