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DavidG · 12-20-2020, 08:06 PM

JM 35 Sedan,

It's the conventional wisdom that 68- prefix heads were service only but a search of the engineering release records at the BFRC in Dearborn revealed that they were indeed released for production use late in the '36 model year.

'33 production aluminum heads have no part numbers or Ford script cast into their surface. It is only with the release of cast iron heads that the part number was added (I guess someone assumed that engine plant and parts counter workers could not tell the difference between cast iron and aluminum heads, just like they did with early '32 V8 heads which are marked R and L; a bit of an insult.) Ford script did not get added to either four-cylinder or V8 heads until August, 1934, late in the '34 model year.

12-20-2020, 08:06 PM	#14
DavidG Senior Member Join Date: May 2010 Location: southeastern Michigan Posts: 10,137	Re: Can't find heads for 34 V8 JM 35 Sedan, It's the conventional wisdom that 68- prefix heads were service only but a search of the engineering release records at the BFRC in Dearborn revealed that they were indeed released for production use late in the '36 model year. '33 production aluminum heads have no part numbers or Ford script cast into their surface. It is only with the release of cast iron heads that the part number was added (I guess someone assumed that engine plant and parts counter workers could not tell the difference between cast iron and aluminum heads, just like they did with early '32 V8 heads which are marked R and L; a bit of an insult.) Ford script did not get added to either four-cylinder or V8 heads until August, 1934, late in the '34 model year.