C1 Stamp Pad Experts

[Ted S.]

Is this a legit CU stamping? It looks like the block was peened so any broach or new machining marks are gone.

Thanks,

Ted

[Mike M.]

Re: C1 Stamp Pad Experts

looks like mr sandblaster was involved. mike

[Clare Carpenter]

Re: C1 Stamp Pad Experts

I've read at least a few times in the last year or so, of using the shot blasting process to recondition blocks. I had never heard of this being used for engine blocks until recently. I would question the need why this is necessary. I wonder if it means that blocks so badly neglected and damaged by time, weather, and neglect are now being used and this method at least gets the block back to a rough castng condition where it can be remachined, etc. Whatever the reason, the original broach marks are gone.

[Mike B.]

Re: C1 Stamp Pad Experts

I am not sure if it is year specific, but I believe the Flint assembly stamp should be on the right-hand side of the pad. I know it is on my 1961. The left side was for the serial number derivative. Mike

[Dennis C.]

CU Code Used 58 - 61, So Outboard Stamp Is...

...typical until the VIN stamping was added aboout mid '60.

[Joe Maulsby]

Re: C1 Stamp Pad Experts

Not a stamp pad expert, but my early 1960 (1st week of Dec. '59) had the VIN number on the left and then the Engine code to the right.

[Dennis C.]

Ted, Should Add...

...I'm pretty comfortable looking at this stamping, in spite of missing broach marks. Best, Dennis

[Justin B.]

Re: C1 Stamp Pad Experts

My original 58' engine stamp is on the outboard or passenger side just like Dennis said.