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By Daniel Jessup - 12 Years Ago
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Most of us, I would assume, are using the composite head gaskets these days. However, for those of you that use the steel shim head gaskets and gain a little extra compression, what brand are you running? I would imagine that an NOS pair would be fine right since they are steel gaskets?
Also, does anyone know if Ford manufactured different steel gaskets for the Y block once the 239 got started? Most of the time I see composite gaskets that are after market manufactured for the Y block in general...
working on the 312 build 
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By Glen Henderson - 12 Years Ago
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Daniel, as for as I know, no one is producing the steel shim gaskets anymore.
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By oldcarmark - 12 Years Ago
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Try Dennis Carpenter for NOS gaskets.
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By Hoosier Hurricane - 12 Years Ago
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Daniel:
Ford used the first Y gaskets for the 239. Then they offered one for a 239 with the "replacement" head (can you say '55 head?). Then came the 272-292 gasket, and with the 312 arriving in '56 came a 312 gasket. Then in '61 they replaced them all with a 292 gasket. That's why gasket overhang into the bore became a problem with 312s bored .030 or more. Then came Best with a big bore gasket. Hooray!
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By pintoplumber - 12 Years Ago
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Dan, here's a picture of steel gaskets. I have them laying for the passenger side. The 239 early version is on the bottom.
Do you see the different water passages?
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By 314 - 12 Years Ago
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carpenter has them for 10 bucks.still lots of them around.
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By Daniel Jessup - 12 Years Ago
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@Dennis - thanks for that picture - its worth a thousand words!
thanks for the lead on Carpenter too.
My 312 build is .030 over 312 so I guess that overhang will get me.
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By Y block Billy - 12 Years Ago
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That top one doesnt appear to have the square corner mormally installed to the front. It has a somewhat squarer corner at the bottom right but isnt it normally at the top like the bottom one?
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By Brodie - 12 Years Ago
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FWIW, I recently used steel shims from Carpenter on my fresh .060 over 312. Even with a liberal dose of copper coat and 3-stage torquing they leaked like a seive on one side. The heads & deck checked square & flat. I went back with composites and no troubles.
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By 314 - 12 Years Ago
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ive seen the steel ones before with both corners rounded.
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