Early B head difference

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Apr 02, 2008 19:08:22
cfrench

In my great pile of parts I bought. I found a disassembled engine. I took the head with me yesterday to check it out. In looking at it the casting clock says 12/63. What if any differences are the G and GA heads different from the later heads?

Apr 02, 2008 19:34:26
rrmgb

Carl, you need this?
http://flowspeed.com/cylinder-ident.htm





Apr 03, 2008 12:40:10
cfrench

Thanks for the link to Sean's page. I will check that later today.

Apr 03, 2008 16:41:25
rbucchino

Robert,

Excellent resource. Thanks for the link!

Apr 03, 2008 19:57:55
cfrench

My head is a 12H-906. Is there any increased or decreased value based upon this? Is it just your basic B series head or was there something different about the 3 main heads.

Apr 03, 2008 20:50:04
Lee

The 12H906 and 12H1326 are the same except for chanels in the casting near the pedestals to drain oil away from the valve guides.

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