[muscle_collector]

pulled an engine out of a car yesterday and noticed these upside down castings. I have seen different things like this over the years. what do you guys have?
interesting thing about these they were cast on different days and both are upside down. anyone have an idea why?

[grandam1979]

1970 455 as cast,

[John Milner]

Originally Posted by muscle_collector

pulled an engine out of a car yesterday and noticed these upside down castings. I have seen different things like this over the years. what do you guys have?
interesting thing about these they were cast on different days and both are upside down. anyone have an idea why?

The original engine in my '69 GTO has 62 heads with the numbers upside down like that.

[tom s]

I had a RA V 400 block with a transfer lug on it,no clue why?I have owned quite of few and never had seen that before.Tom

[muscle_collector]

Originally Posted by John Milner

The original engine in my '69 GTO has 62 heads with the numbers upside down like that.

I saw a picture yesterday on another forum cant remember which but the guys engine had 62 heads cast upside down just like these. had completely different cast dates. so who knows on that one.

[gtospieg]

was working on a(302) 69 Z yesterday and the drivers side head date code was upside down

[242177P]

Some 67 intakes have "FIREING ORDER".

[Brian Baker]

It can all be chalked down to human error when they were setting up the molds prior to pouring.

[Baron Von Zeppelin]

Masters of creativity in the Race Section here :
Edelbrock Aluminum Angle Plug Heads - with factory casting numbers.


These 1968 #96 Ram2 heads even have date codes on them.



1972 7F8 heads




1973-74 SD heads

[poncho-mike]

I have seen upside down "62" heads as well and I had a set at one time. I have also seen big valve screw in stud small combustion chamber heads with no casting numbers, just a blank pad. The cast dates were in the 1970 production year. At the time, I thought they may have been service heads, but I later saw heads where the casting numbers were ground down and a production casting number was stamped in. The surface texture appeared to be original, so I think somebody forgot to put the casting numbers in the tool when casting the heads. Has anybody ever seen D-ports like this?

Here is another oddity. I had a set of #31 heads that came off of a car I junked a long time ago. One head had the same casting style as the early 1968 16s and 670s and the other one had the later 1968 style casting. The heads were only about two days apart, and came on the same car. I don't have a scanned image but I still have pictures somewhere I took in the 1980s.

[necdb3]

I have the original "62" heads on my 69 firebird 400 conv. The 62 is correct on both heads but the date code on one is K148, the other is K188. Only the K188 is upside down.

[thepontiacman]

I bought some 1970 #64 heads that were upside down. I recognized it, but before that had never seen it before.
Date codes were '69.

I sold them at some point.