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alkemy
Cylinder heads
Sun Jul 12, 2015 22:30
211.27.213.148

If you mean 471 heads, on the negative they are lower compression, on the plus side they are posted so you can machine more off them. If you are doing a rebuild and putting new pistons in you could use pop ups to raise compression. Here is a link to the Mummert site

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

I would ask the question re breathing on the Y-blocksforever site.

http://forums.y-blocksforever.com/Default.aspx

  • Y block headsJR, Sun Jul 12 10:09
    292 y block with blown head gasket and cracked head. Ecz g The heads need about 700 in machine work. I have a set of 5750 147 heads am is gaining or losing if I swap. Thanks
    • Cylinder heads — alkemy, Sun Jul 12 22:30
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