The Ford Barn

CA Victoria · 07-07-2011, 03:29 PM

I cannot find the post again.... I was reading a post that refered to a certain Model B head talked about in a past copy of Secrets of Speed.
It sounded like the head was a diamond head, "C" stamped with ford script, and maybe a highter compression ratio. Apparently it was different from the "B" head, what's different?

Second question, can the B head be milled to achieve a better compression ratio with out compromising the piston to head clearance?

Floyd · 07-07-2011, 06:57 PM

There was a "diamond" block which only meant that it was cast as a service replacement block after the production run ended. As to the "C" head, Ford only made one head for the model B engine and it had a large C cast into it. There was nothing special about it as it was the only one produced. Ford made a high compression head for the model A and it had a large B cast into it to denote it from the standard model A head. There was no such thing a a C engine. It just happens that Ford had already used the letter B on the model A, therefore for easy identification for parts people, the moel B head had the next letter, C cast into it. Some later aftermarket heads did not have the C. However the B engines 32 to 34 left the Rouge plant with a C cast into them.
Thanks Floyd

Fred A · 07-08-2011, 12:50 PM

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Unless restoration is the intent, The Model B (C) head has little to recommend it for other uses. There are so many choices in more efficient aftermarket heads such as the Snyders, Bumfield and a long list of discontinued offerings with various advantages and dis. I favor the "police head" because of its Ford manufacture but recently bought another Brumfield because it could be demonstrated to the seller that it needed to be resurfaced. Careful, they can start to pile up. People do as they wish and commonly make assumptions such as greater compression in replacements. Good Luck: Fred A

07-07-2011, 03:29 PM	#1
CA Victoria Senior Member Join Date: Feb 2011 Posts: 2,113	Model B Head I cannot find the post again.... I was reading a post that refered to a certain Model B head talked about in a past copy of Secrets of Speed. It sounded like the head was a diamond head, "C" stamped with ford script, and maybe a highter compression ratio. Apparently it was different from the "B" head, what's different? Second question, can the B head be milled to achieve a better compression ratio with out compromising the piston to head clearance? Last edited by CA Victoria; 07-07-2011 at 05:33 PM.

07-07-2011, 06:57 PM	#2
Floyd Senior Member Join Date: May 2010 Posts: 468	Re: Model B Head There was a "diamond" block which only meant that it was cast as a service replacement block after the production run ended. As to the "C" head, Ford only made one head for the model B engine and it had a large C cast into it. There was nothing special about it as it was the only one produced. Ford made a high compression head for the model A and it had a large B cast into it to denote it from the standard model A head. There was no such thing a a C engine. It just happens that Ford had already used the letter B on the model A, therefore for easy identification for parts people, the moel B head had the next letter, C cast into it. Some later aftermarket heads did not have the C. However the B engines 32 to 34 left the Rouge plant with a C cast into them. Thanks Floyd

07-08-2011, 12:50 PM	#3
Fred A Senior Member Join Date: May 2010 Location: Encino California, near Burbank Posts: 935	Re: Model B Head Sponsored Links (Register now to hide all advertisements) Unless restoration is the intent, The Model B (C) head has little to recommend it for other uses. There are so many choices in more efficient aftermarket heads such as the Snyders, Bumfield and a long list of discontinued offerings with various advantages and dis. I favor the "police head" because of its Ford manufacture but recently bought another Brumfield because it could be demonstrated to the seller that it needed to be resurfaced. Careful, they can start to pile up. People do as they wish and commonly make assumptions such as greater compression in replacements. Good Luck: Fred A