Head numbers help
 

Attachment 583886These are in a Attachment 583886

Attachment 5838871936. Has it been factory redone?

Re: Head numbers help
 

Not sure if they are genuine Ford, but appear to be service replacement heads, judging from the late casting dates. The "40" prefix indicates heads for 1933 & 1934 V8.

Re: Head numbers help
 

That’s what I thought also

Re: Head numbers help
 

These are most likely service parts from Ford.

Re: Head numbers help
 

The 36 could have flat top or domed pistons. The 40- indicates the heads are for flat top. The part number suffix "B" indicates the heads are cast iron. The 40- heads were used into 35. There are many different heads used by Ford. Suggest you look in the V8 Club restoration book for 35-36 and it's updates on the club form.

Re: Head numbers help
 

Yes, many design changes were made in '35 / '36. However, only aluminum heads were installed upon the assembly line.

Re: Head numbers help
 

On the assumption your "36" is a car, Kube is correct in that all production car engines in 1936 came with aluminum heads. The 40-6049/50-B heads were available for flat-topped pistons as service replacements for the production aluminum versions.

The cast iron 40-6049/50-B were the standard production heads for trucks from 1934 through 1936, so they are correct for those vehicles.

The embossed date tags indicate the heads are made as service replacements. Mid-1930's production heads made by Ford do not have date tags.

Re: Head numbers help
 

The embossed date tags indicate the heads are made as service replacements. Mid-1930's production heads made by Ford do not have date tags.[/QUOTE]

Re: Head numbers help
 

Thank you all for this information. My '33 has the replacement heads then.

Re: Head numbers help
 

Kube - There are two pictures of the 40-6049-B head (looks like a duplicate photo) with a 10-1-48 date, and one picture of the 40-6050-B head with a 5-20-48 date.

Re: Head numbers help
 

I'm going blind... no other excuse. Well, maybe one more... I'm goofy in the head.
Thanks :)

Re: Head numbers help
 

Easy to do - I do it all the time.

Re: Head numbers help
 

thanks