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ford38v8 · 08-19-2011, 11:21 PM

Hats off to 38Coupe. I hadn't seen this post before today. Great info here which could become the basis for a book.

A couple of comments and a question...

Freeze plugs: These were actually core plugs. A core plug is required to fill the holes left in castings from positioning blocks in sand castings.

21 - 24 stud transition: The Ford historian Allan Nevins has it that the 24 stud was to be job #1 for '38, but low sales and overproduction of the 21 stud resulted in side by side production, as the need for service blocks was not as strong as expected.

Can anyone identify differences and time frame between the 59A and the 59AB, and was this a head only difference or were there differences in the block as well?

08-19-2011, 11:21 PM	#32
ford38v8 Senior Member Join Date: Jul 2011 Location: SF Bay Area Posts: 6,645	Re: Engine block I.D. pictures Hats off to 38Coupe. I hadn't seen this post before today. Great info here which could become the basis for a book. A couple of comments and a question... Freeze plugs: These were actually core plugs. A core plug is required to fill the holes left in castings from positioning blocks in sand castings. 21 - 24 stud transition: The Ford historian Allan Nevins has it that the 24 stud was to be job #1 for '38, but low sales and overproduction of the 21 stud resulted in side by side production, as the need for service blocks was not as strong as expected. Can anyone identify differences and time frame between the 59A and the 59AB, and was this a head only difference or were there differences in the block as well? __________________ Alan