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105761 Posts in 12346 Topics by 4757 Members
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1066  Camaro Research Group Discussion / General Discussion / Re: 69 Z/28 Cowl tags.. Real?? on: February 09, 2012, 02:40:38 PM
In regards to the engine stamp...
I'm no expert on Z 28 pad stampings (or any for that matter  Grin ) but looking at the number 3 caught my attention. So I imported this image into photoshop and measured each number and letter at their widest points and they all fall very close in width as expected. The number 3 and the second zero (0) are wider and can be seen visually as well. The two number 0's are not the same font. In other words, the number 30 doesn't look right. But then I may be way off base.

Mike

1067  Camaro Research Group Discussion / Decoding/Numbers / Re: 837 Stamp on: February 06, 2012, 06:41:07 PM
 According to this ad on ebay http://www.ebay.com/itm/1969-Z28-1100837-9D3-alternator-RARE-original-gm-stamp-427-396-copo-L78-L89-4-69-/330683082101?pt=Vintage_Car_Truck_Parts_Accessories&vxp=mtr&hash=item4cfe3f6575
if this really is real then these numbers should match the fonts for the one that started this thread.
  So, if I understand it right, fakers can now duplicate the patina on an alternator before stamping? I'm glad I have the run of the mill '693 and '805's on my cars and bought these gas guzzling pigs during and shortly after the 2nd gas crisis when people were practically giving big engine cars away.

Mike
1068  Camaro Research Group Discussion / Restoration / Re: Convertible Top Restoration on: February 06, 2012, 06:07:54 PM
 The last time my top did that I found the fluid was a tiny bit low in the pump. I drained it and refilled it with automatic tranny fluid and it worked perfect.

Mike
1069  Camaro Research Group Discussion / Decoding/Numbers / Re: 837 Stamp on: February 05, 2012, 06:40:46 PM
 Doesn't the number 8 seem upside down?

Mike
1070  Camaro Research Group Discussion / Restoration / Re: Ground Strap Question on: February 04, 2012, 12:20:19 PM
Very Interesting - what do they look like I wonder.

 Here is a shot of the ones in my 67 Camaro's.

Mike
1071  Camaro Research Group Discussion / Originality / Re: 67-69 Shock Retainer/washer on: February 04, 2012, 10:48:34 AM
I wouldn't expect to see any spatter paint on that upper shock retainer; the spatter paint was sprayed in the Fisher Body Paint Shop, and the rear shocks were installed by Chevrolet, many hours later.

Come to think of it, comparing the washer Chick shows vs. the NOS one I have, it looks like it's the bottom washer so that would be on the outside of the trunk area. Notice the NOS top washer is larger and also has the shape of the retaining nut stamped into it.

Mike
1072  Camaro Research Group Discussion / Originality / Re: 67-69 Shock Retainer/washer on: February 04, 2012, 09:34:04 AM
Hi Chick,

  Attached are 2 images of NOS shocks I have on a shelf since about 1984 and never have been on a car.
This is for a 'TM' shock P/N 3192831 with a date of 296 67 so this should be OK for an early 68 usage at least. The measurements are listed.
Hope this helps,

Mike
1073  Camaro Research Group Discussion / Maintenance / Re: "Hot Slot" equipped cast iron intake manifold modifications.. on: February 03, 2012, 10:28:30 AM
 I found this informative article (attachment) about heat risers you may find of interest.
It's in a Word format.

Mike
1074  Camaro Research Group Discussion / Maintenance / Re: "Hot Slot" equipped cast iron intake manifold modifications.. on: February 03, 2012, 09:25:35 AM
  I tapped and installed allen plugs in the hot slots on both of my 67 396 Camaro's. I left the riser valve alone though. That opens fairly quick anyways and I don't see how that would contribute to performance issues. The stock exhaust manifolds are the large performance reduction culprits (you can work around that a little by using a cam with a slightly longer exhaust profile). I did install a restrictor in the intake manifold gasket crossover opening to limit the amount of flow under the intake mainly to reduce paint discoloration and flaking at the ends but still retaining the functionality of the choke coil.
 If you intend to drive the car in cool weather or show the car I would recommend to leave the exhaust valve in place.
I don't think any of us use the cars today the way they were intended due to their antique status and value, including performance concerns, so aside from the hot slot plugs, I would recommend to leave the rest intact.
 
Mike
1075  Camaro Research Group Discussion / Originality / Re: Factory Fastener Discussion on: February 02, 2012, 03:47:35 PM
I'll be glad to help out. Anyway you can get those numbers you just posted into Excell? It would be easier to track it that way.

Mike
1076  Camaro Research Group Discussion / Decoding/Numbers / Re: Engine Stamp on: January 30, 2012, 11:09:50 PM
inspected dosn't mean found, proved, verified, it just means inspected. What are the results of the inspection ?
Agreed ....
I gave it a quick 'inspection' and the number 4 jumped out immediately to be different between the block and tranny partial VIN. The red font flag went up then.
 Inspection done!

Mike
1077  Camaro Research Group Discussion / Decoding/Numbers / Re: Engine Stamp on: January 30, 2012, 10:11:10 PM
The CAR IN QUESTION has been on ebay before and it's a nice restoration, but the engine is a restamp.

Ed


   What stands out are the fonts of the partial VIN on the block don't match the font on the tranny partial VIN. I assume the 69 engine and trannys were stamped the same time when the car was built.
The ad states "WE HAD THE ENGINE & TRANSMISSION REMOVED & PROFESSIONALLY INSPECTED FOR AUTHENTICITY"
Sounds like a play of words? Authentic doesn't necessarily mean original or 'born with'.

Mike
1078  Camaro Research Group Discussion / General Discussion / Re: 12 bolt rear non posi on: January 30, 2012, 09:41:29 PM
My 67 LOS 4B -  L35 w/TH400 has a 12 bolt non-posi rear with round traction bar.

Mike
1079  Camaro Research Group Discussion / Originality / Re: Correct Fasteners and headmarkings on: January 29, 2012, 09:24:20 PM
Great pics!!! Anything on the P (mirror or backwards)?
Damn! it 's reversed. I took it upside down because it was the only way I could get a focus shot of it and flipped it vertically but forgot horizontal.
Good catch. It's a 'P' though.

Mike
1080  Camaro Research Group Discussion / Originality / Re: Correct Fasteners and headmarkings on: January 29, 2012, 09:03:43 PM
 Here is another random one removed from the rear (the first time off the car since 67!)
They look close though mine is disconnected. If it was the machining stamping cast that was 'worn' then possibly 100's to 1000's of these could have been produced.
Yours and mine have the same head shape otherwise and look approximately the same size.

Mike
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