L78 396/375 HP Long Block CKO Stamping

**Rick H** · #1 05-01-2006, 06:12 AM

Actually Jason I held back quite a bit about that block. The fact of the matter is this. NO CKO was used in 1971 or 1972. Any replacement motor replaced under warranty was stamped "CE" with a corresponding serial number.
You can speculate all you want but I'm not the one being naive.

Rick H.

Astock · #2 05-01-2006, 06:32 AM

I've had a gang of parts over the years from the General that you won't read about or find the casting numbers in any book.There's nothing wrong with those stampings,Jason.

**Rick H** · #3 05-01-2006, 06:45 AM

If that is the case then someone should be able to produce another example just like Jason's. Anyone?

Rick H.

**SuperNovaSS** · #4 05-01-2006, 09:08 AM

Look at Ratbirds CRR stamping. What about this being a 4 bolt main 290 block? hey are said to be 2 bolt only blocks but this is definitely a factory 4 bolt.

Jason

Jason

**Stefano** · #5 05-01-2006, 06:59 PM

[ QUOTE ]
Look at Ratbirds CRR stamping.

[/ QUOTE ]

Which Ratbird?

Also, I have seen the double stamp/ shadow stamp on other original non decked or restamped blocks.

**SuperNovaSS** · #6 05-01-2006, 07:50 PM

Thanks Mark! I felt like a lobster over here. I noticed that pad had the same 2GMEXXX stamping. Any idea what it could mean?

**PeteLeathersac** · #7 05-01-2006, 08:08 PM

And notice the 2 & GME & XXX are all on different angle/planes so have been done w/ 3 different hits....possibly at different stages of assy? .

~ Pete

**92646** · #8 05-01-2006, 10:27 AM

Will this help?
Mark Sheppard

**92646** · #9 05-01-2006, 10:37 AM

Another picture

**92646** · #10 05-01-2006, 10:37 AM

picture 3

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