Maltese Cross.

[Brandy]

Measure the pad at the bottom of the head. They normally measure one inch from the factory.
View attachment 612159

I don't have a digital but it looks like an inch to me. I have calipers and it's dead on one inch, the valve stems are 3/8ths.

 

[khryslerkid]

I don't have a digital but it looks like an inch to me. I have calipers and it's dead on one inch, the valve stems are 3/8ths.

Sounds factory to me. They're 452 heads?

 

[Brandy]

Sounds factory to me. They're 452 heads?

346 heads.

 

[khryslerkid]

346 heads.

Ok.
I'm wondering if the original block they came off of had a undersized crank and the worker with the Maltese cross stamp went overboard. That area on the head is exposed up front, not covered by the manifold.

 

[Brandy]

Ok.
I'm wondering if the original block they came off of had a undersized crank and the worker with the Maltese cross stamp went overboard. That area on the head is exposed up front, not covered by the manifold.

Agreed, you could see it. The original crank was .010 under. Just that there is no stamp on the pad for that... think they put it there instead?

 

[khryslerkid]

Possible

 

[Fran Blacker]

This is what factory did to undersized cranks. If it doesn't have these bet someone had it cut. Right to left (M is hard to read) M5 R 56 78 all .001 under.

 

[tonysrt]

On the heads it's usually under size guide and oversize valve stem.

 

[bearman]

sometimes the dealership marks them because of a warranty issue. cause if it comes back again during the warranty period and has same problem they replace it. then shows back up at factory to find out why

 

[Brandy]

This is what factory did to undersized cranks. If it doesn't have these bet someone had it cut. Right to left (M is hard to read) M5 R 56 78 all .001 under.

View attachment 612255

The original crank had all of that on it. I just wanted to know why the marks are on the heads and not on the pad.

 

[Charger Dana]

Maltese cross: