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V0217DZ with two sideways letters M for 124379N803507

Started by 69RALLYSPORTZ28, April 21, 2021, 10:23:01 PM

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69RALLYSPORTZ28

Does anyone else have an original DZ 302 block with two sideways letters M at the beginning and the end of the plant, date and engine suffix stamping?

ric1969


69Z28-RS

ONLY $7500 ...  so you could take a chance!~    LOL
09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

jdv69z

Jimmy V.

william

Learning more and more about less and less...

KurtS

I have a different picture and it looks like 9N603507, but it's hard to see the 6.
Pad looks ok.
Kurt S
CRG


ric1969

 the only thing look's good is the date casting numbers

69Z28-RS

Quote from: KurtS on April 22, 2021, 10:23:09 AM
I have a different picture and it looks like 9N603507, but it's hard to see the 6.
Pad looks ok.

Kurt, that explains the incorrect VIN posted, but what was your opinion of the pre/post 'sideways M'?   Have you ever seen anything like that before? (I haven't).   I also thought the 'std' characters in the app stamp looked OK, but since the broach marks were not captured in the photo, I would not say that the stamp was 'original'...   Would you?  and if so, how do you explain the pre/post characters stamped??
09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

KurtS

Kurt S
CRG

ric1969


z28z11

The engine pad stamp appears original to me, font and characters look good. The "M" was probably added by an owner during a trip to the machine shop, I always stamped my initials in an inconspicuous part of the casting in case it got "destroyed" or "lost" during the machining process (I wouldn't have done this obvious a stamp location !) Maybe that sounds paranoid, and I guess it was, as I never had one turn up missing (but I've heard horror stories over the years, too). If the VIN stamp above the filter is a 6 rather than an 8 as it seems from a casual glance, that could be pretty close to the range. My Z11's 3/17 built block carries a 620 VIN -

Regards,
Steve
1968 Z28 M21/U17 BRG/W 1967 Chevy ll Nova SS 
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06  1949 3100 5wd 235/6

bcmiller

Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - project
Looking for 68 Camaro with body # NOR 181016

ric1969

 Reading Steve's comment , I've changed my mind does look good just can't see those broach marks.

69Z28-RS

Quote from: ric1969 on April 26, 2021, 12:59:20 AM
Reading Steve's comment , I've changed my mind does look good just can't see those broach marks.

There ARE people who can perfectly match the factory stampings, but replicating the factory broach marks after a machining is not as easy!~   

I'm like Ric..  I want to see factory broach marks before verifying authenticity!

And like Steve, I've also added my initials to a block before going to the machine shop, but never would I add them to the factory pad area, and can't understand anyone adding those M's to a factory stamping!
09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan