Real? 67 Z28 302 MO
 

I purchased this complete short block last week and wanted some opinions on the stampings being real or not. I believe they are real factory stampings but looks like the guy at the GM plant was playing around and stamped it three times with the same Vin number. The block does not look decked and has some pitting and the vertical broaching. It was complete with all original components, i.e. 6764 crankshaft, original camshaft, pistons, rods, oil pump, oil pan with windage tray, timing cover and factory timing chain. The block also has MO and 302 on both sides of the block. Any help would be appreciated. I'm 99 percent sure its real but it never hurts to hear from some knowledgable guys. Stamped V0308MO and casted date looks like B 21 7 or B 27 7.

Re: Real? 67 Z28 302 MO
 

were you going to post a pic of the stamping/engine?

Re: Real? 67 Z28 302 MO
 

Can't figure it out. Can I send them to you for posting?

Re: Real? 67 Z28 302 MO
 

I have the engine at the Machine Shop for rebuilding. The block can remain standard, but will have a couple minor pitts down low in the cylinders after a clean-up honing. This means I can still use the original factory one year only pistons. The camshaft has two lobes that have minor pitting and was advised not to used because it would wipe it out and hurt the engine. I would like to used it but don't know if my rebuilder is over kill and scaring me. He did provide me with a guy that reground camshaft to repair it, since its dated to the engine. I do have a NOS off road GM camshaft that could be used instead. The 6764 crankshaft is mint and requires just a polish. I'm thinking of having the block decked, since it has the wrong built date and vin number. At, least I know it was real 302 motor and still would be in my opinion.

Re: Real? 67 Z28 302 MO
 

Don't deck it..

Re: Real? 67 Z28 302 MO
 

[ QUOTE ]
Don't deck it..

[/ QUOTE ]

I AGREE!!!!!!

Re: Real? 67 Z28 302 MO
 

how about a pic?? you can send here and I will post...

Re: Real? 67 Z28 302 MO
 

[ QUOTE ]
Don't deck it..

[/ QUOTE ]

Ditto!.
Find another same casting # block and deck it also you can probably come up w/ correct casting dates if you want to as well!.

https://www.yenko.net/ubbthreads/imag...lins/beers.gif
~ Pete

Re: Real? 67 Z28 302 MO
 

Stamping looks good.
https://www.yenko.net/attachments/454814-V0308MO.jpg

Re: Real? 67 Z28 302 MO
 

Nice... is the car out there?

Re: Real? 67 Z28 302 MO
 

[ QUOTE ]
Nice... is the car out there?

[/ QUOTE ]

12437N193719

https://www.yenko.net/ubbthreads/imag...lins/beers.gif
~ Pete

Re: Real? 67 Z28 302 MO
 

Theres a Royal Plum RS/Z here that needs a REAL 302 and this owould be perfect

Re: Real? 67 Z28 302 MO
 

That stamping is pretty funky...but I will trust the experts that it is real...The fact that the motor had all the original parts kind of confirmed it prior to seeing the stampings...and I did see the trans with no less than 7 vin stampings...

Cool motor !!!...dont deck it...and try to find the car first before doing anything....!!! Then, if all else fails...you can donate it to me for my car,ok !!! haha

Time to find a 67 Z body to build a car around your motor... !!

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Re: Real? 67 Z28 302 MO
 

So did you have the trans to this engine?? If so, keep them together

My trans had 3 or 4 VIN stampings on it

Re: Real? 67 Z28 302 MO
 

No trans

Re: Real? 67 Z28 302 MO
 

[ QUOTE ]
Stamping looks good.
https://www.yenko.net/attachments/454814-V0308MO.jpg

[/ QUOTE ]What I find weird is that ONE of the three Vin stampings appears to have bigger characters than the other two.

Re: Real? 67 Z28 302 MO
 

"...What I find weird is that ONE of the three Vin stampings appears to have bigger characters than the other two..."

I noticed that too but when looking closer thought it's because the shorter looking set doesn't include the botttom part of the digits...like the gang stamp was held on an angle when hit?.

https://www.yenko.net/ubbthreads/imag...lins/dunno.gif
~ Pete
https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: Real? 67 Z28 302 MO
 

[ QUOTE ]
"...What I find weird is that ONE of the three Vin stampings appears to have bigger characters than the other two..."

I noticed that too but when looking closer thought it's because the shorter looking set doesn't include the botttom part of the digits...like the gang stamp was held on an angle when hit?.

https://www.yenko.net/ubbthreads/imag...lins/dunno.gif
~ Pete
https://www.yenko.net/ubbthreads/imag...lins/beers.gif

[/ QUOTE ]OK, look at the 3 N's. The lower one is wider as well as taller. That wouldn't happen in the scenario you outlined

Re: Real? 67 Z28 302 MO
 

Being the stamping(s) to the upper-left is actually two stampings having been hit twice, it's the two N's stamped on top of each other that give the illusion of being skinnier since the 'skinny' looking N's are from seeing part of each stamping at once..

Looking closely at the four vertical sides of both N's together, the 2'nd and 4'th vertical sides are the N of the stamping that's higher than the other one also is taller since it's pretty much a whole height stamping being gang stamped flat..
Comparing this N to the whole N of the complete lone stamping at the bottom, they look the same...don't they?.

The 1'st and 3'rd vertical sides are of the N that's gang has been stamped lower than the other also looks shorter since it's the one mentioned previously that doesn't include the botttom part of the digits from the gang stamp being held on an angle when hit..

https://www.yenko.net/ubbthreads/imag...lins/beers.gif
~ Pete

--------------------
I like real cars best...especially the REAL real ones!

Re: Real? 67 Z28 302 MO
 

[ QUOTE ]
Being the stamping(s) to the upper-left is actually two stampings having been hit twice, it's the two N's stamped on top of each other that give the illusion of being skinnier since the 'skinny' looking N's are from seeing part of each stamping at once..

Looking closely at the four vertical sides of both N's together, the 2'nd and 4'th vertical sides are the N of the stamping that's higher than the other one also is taller since it's pretty much a whole height stamping being gang stamped flat..
Comparing this N to the whole N of the complete lone stamping at the bottom, they look the same...don't they?.

The 1'st and 3'rd vertical sides are of the N that's gang has been stamped lower than the other also looks shorter since it's the one mentioned previously that doesn't include the botttom part of the digits from the gang stamp being held on an angle when hit..


https://www.yenko.net/ubbthreads/imag...lins/beers.gif
~ Pete

--------------------
I like real cars best...especially the REAL real ones!



[/ QUOTE ]Yeah, I think you're right. I look at the clearer of the upper 2 8's, and it looks the same size as the lower 8 in the seperate formation. That guy was smoking "something". Three attempts, and neither's worth a crap https://www.yenko.net/ubbthreads/imag...mlins/grin.gif