No engine number
 

I have a block that has never had a number stamped on it. It is .060 over. There are four Ford script ex. valves in it, and non-adjustable tappets. Can you experts tell me anything more about its origins or possible previous uses? Marine/industrial, perhaps, or after-market? No diamond on the block.

Re: No engine number
 

Was the number ground off? Maybe in preparation for a re-stamping that just never happened?

Mike

Re: No engine number
 

I considered that at first, but now I don't think so. The number area looks full height and still shows original casting roughness.

Re: No engine number
 

Some rebuilders would simply rework the block and then set it aside for a future customer. If the new customer didn't demand that he repeat the number stamping - then it might not have been done.

My original truck engine was a red painted engine, possibly a sears replacement. It was fully worn out when I got the truck which showed 140K on the odometer. A typical life for a Model A engine was reported by my engine rebuilder at about 70K miles so this might have been the end of the second engine?

This no-number red engine has the 'as cast' appearance on the block. I've considered that when I rebuild this engine for use in the truck I would re-stamp to match the frame.

Isn't that the desired condition?

Not necessary for NH state registration, however.

Joe K

Re: No engine number
 

It could have been a replacement block
It could be a " diamond" block, look at the space between the lower left corner of the valve cover and the Sydenham timing gear cover for a diamond

Re: No engine number
 

That's what i first thought of when I read the post.

Re: No engine number
 

I checked for that when I first got it; no diamond.

Re: No engine number
 

My "diamond block" was obviously stamped by an amateur as the font isn't correct and the numbers don't line up properly. But it does look like it was stamped on the "as cast" surface of the pad.

Re: No engine number
 

There are folks who have shaved the number boss in a milling machine and then went over it with a scaling tool. It is very hard to detect that this is not an original block without numbers. Might be what you have...

Re: No engine number
 

All engines that passed final inspection and run in on the electric motor and was slated for installation in the Model A/AA was stamped with a number.

No number 1) it was removed, 2) Industrial engine.

As Ford assembled a series of what were called Industrial Engines during 1929 and 1930 they would not have a diamond on the block.

Re: No engine number
 

I have an industrial block with no number. It wasn't shaved off it was never stamped. I think that block used for farm implements etc. were left with out a number since they were not being used to license a car.