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105720 Posts in 12341 Topics by 4754 Members
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1456  Orphans - documentation or VIN-stamped drivetrains - in search of the original cars / 1969 - Orphans / Re: 69 Z 19N687352 Original Block on: July 07, 2013, 04:22:10 PM
Pad looks good, btw. Smiley
1) The 'stamping' itself 'looks' good, but I understand there are 'restampers' who can duplicate original stamps/holders?
2) The original broach marks are not visible in the supplied photo, but all kinds of horizontal and diagonal lines are  very visible, which is suspicious.
3) The engine assembly date of 0724 is more than 2 months after the 0522 cast date, which is very unusual, and also suspicious, in my experience.
4) The VIN provided of 687352 could not be confirmed from the pix (by me), but that VIN corresponds to 18-19 September 1969, which is a day or two after my Z28 was built.   This also raises suspicions as my engine was cast on 0826 and assembled on 0827.

I'd have to see a LOT more information and examine the engine before I'd feel good about this being an original DZ block...
1457  Model Specific Discussions / Trans-Am Camaros / Re: 1968 Trans-Am season review on: July 07, 2013, 03:14:34 PM
that's an interesting note re 'one of the Trans Am car manufacturers to homologate independent rear suspensions for '69-1/2' trans am cars, without new tooling...     I assume that was Chevrolet/GM considering that?   re the already existing Corvette IRS???    Can anyone expound on that possibility and what happened to prevent it??
1458  Camaro Research Group Discussion / Decoding/Numbers / Re: Canadian POP reissue on: July 07, 2013, 03:09:57 PM
Not sure this is accurate, but per an internet search, FCO in international trading is:

Full Corporate Offer .

This is the final, detailed, specific offer that the seller is sending to the buyer.   Makes sense?
1459  Camaro Research Group Discussion / Originality / Re: Engine hook bolts on manifold on: July 04, 2013, 12:26:06 PM
Edgemontvillage was referring to the engine orange on the head surface between the valve cover and intake manifold... ie. the upper part of the machined surface for intake gasket...  which normally would not get painted on such an engine (with aluminum manifold and aluminum valve covers)..
1460  Camaro Research Group Discussion / Originality / Re: Engine hook bolts on manifold on: July 03, 2013, 09:38:43 AM
I was also in MD at the Camaro Nats, and greatly enjoyed it, meeting great people and seeing some fantastic cars.   What year? and which one was yours?? 
1461  Camaro Research Group Discussion / Originality / Re: Need help/advice on changing exhaust systems on my 69 Z28. on: July 02, 2013, 02:49:52 PM
Are you referring to the chambered cross mufflers?   Allens does make the chambered system as well as regular systems for all kinds of collector cars...
1462  Camaro Research Group Discussion / Originality / Re: GM silver for Rally wheels. on: July 02, 2013, 01:50:37 PM
and also from Team Chevelle forum, Rustynutznrods writes:....

"Eastwood makes a Hotcoat Argent Silver base (part # 10102). The issue with silver powder coating is that they all require a clear topcoat. It's not a bad solution if you're not concerned with originality. But it's obvious to the experienced eye that the finish is not original.

We've done a lot of wheels in satin black powder coat with the correct Argent Silver sprayed on the wheel face. The paint codes are DuPont 9692L or Ditzler DQE-8568. "
1463  Camaro Research Group Discussion / Originality / Re: GM silver for Rally wheels. on: July 02, 2013, 01:46:24 PM
From a search:
(Chevelles forum)
"The 1969 reference page here:
says this:
The lower body panel on Malibus for Argent Silver is DuPont mixing formula 927-95905 or 41253, Ditzler (PPG) color number is DE-8568."

and ...
"Argent Silver is PPG #8568
Ditzler DE-8568
DuPont 42153
Ditzler DQE-8568
DuPont 9692L

DCC DK Argent Met. Flat NX
Match to DDL32961

DMC 900 38.0 38.0
DMC 908 10.0 48.0
DMC 983 110.0 158.0
DMC 902 153.0 311.0
DX 685 850.0 1161.0
DMC 981 790.0 1951.0
1464  Camaro Research Group Discussion / Originality / Re: 69 Z 302 pulley finishes on: June 29, 2013, 05:21:40 PM
That was back in the 'Quality Circle' days... Smiley
1465  Camaro Research Group Discussion / Originality / Re: 69 Z 302 pulley finishes on: June 28, 2013, 09:41:35 AM
you're right John.. Smiley
- experienced engineers generally begin with past designs, look at what's been done before, and verify that it's good w/o problems and doesn't need changes
- 'younger', less experienced engineers sometimes like to ignore past designs and history, and do everything 'anew'... 

That said, do you have similar GM requirements spec information for '69 pulleys, in particular the smog pulley?
1466  Camaro Research Group Discussion / Restoration / Re: heater control restoration? on: June 27, 2013, 05:23:35 PM
thanks.. Smiley
I'd been very hesitant to try disassembling for fear or ruining it..   
so now, armed with your 'it can be done'..  I will go ahead and do it!  Smiley
1467  Camaro Research Group Discussion / Originality / Re: 69 Z 302 pulley finishes on: June 27, 2013, 03:19:55 PM
Thanks John,

It's probably safe to assume that this spec didn't change much between '67 and '69...?   Smiley
1468  Camaro Research Group Discussion / Restoration / heater control restoration? on: June 27, 2013, 09:27:54 AM
Is it possible to disassemble an original heater control such as the one *(already disassembled)* in this ebay ad

... and get it back together correctly with original components?    This is not mine, but my original one has some of the 'shrinkage' in the lettered black backing.   What's necessary or available to replace that black ?paper? part?   Do the control knobs just 'pull off'? and will they push back on and stay?  I'm very hesitant to disassemble my good original part unless I now it can be reassembled properly.
1469  Camaro Research Group Discussion / Originality / Re: Dusk Blue Z on ebay 06/20/13 on: June 27, 2013, 07:51:43 AM
Well, it's back... starting ask price of $65K now...

Insert Quote
"How about the hood insulation pad retainers? Aren't those wrong? Has the green tip dipstick been confirmed to be ok?"

Those appear to be the Chevrolet OTC items that were available in the mid '70's.
1470  Camaro Research Group Discussion / General Discussion / Re: Not a big Fan of Decals.....but on: June 25, 2013, 09:58:02 PM
thanks MyRed'67..  I saved the link..  Smiley
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