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1968 - Orphans / 1968 L78
« Last post by BSMIT59 on October 14, 2017, 11:24:19 PM »
Looking for 1968 Camaro : 18N418218.  I have located the MQ coded 396/375 hp engine.

124378N418218 or 124678N418218
General Discussion / Re: "DZ" grease pencil mark
« Last post by bcmiller on October 14, 2017, 08:28:24 PM »
Thanks Kurt. Doesnít look like much paint on that head in the area with the letters. Was originally under the paint?

And this has broadened into a larger topic, but original question was for a DZ engine. 
1968 - Orphans / Re: 124378N445313 Z/28 Engine for sale
« Last post by KurtS on October 14, 2017, 06:37:12 PM »
Dates are fine.
And they can't double the line speed - it couldn't happen.
1968 - Orphans / Re: need help finding a 68 z28 that this engine belonged to
« Last post by KurtS on October 14, 2017, 06:34:06 PM »
Date is fine.

Table is here:
I don't know how to highlight it more - in bold, with astericks - The data for some months (especially May and June 68 at Norwood) deviate significantly from actual build dates, while other months correlate well.*
1968 - Orphans / Re: 68 Z28 Engine looking for its home
« Last post by KurtS on October 14, 2017, 06:29:17 PM »
No reason not to post the VIN on the engine and every reason to post it.
Restoration / Re: 1969 Z28 spare wheel
« Last post by KurtS on October 14, 2017, 06:26:06 PM »
That is not how they were shipped with the car. The five wheels were mounted at the same time and all were painted the same.
Originality / Re: dating Side post battery cables
« Last post by KurtS on October 14, 2017, 06:20:16 PM »
No. The mold looks like an egg carton with rows of these cavities. Each cavity is numbered. When each mold is filled, all cavities are filled.  If it's 12 cavity mold, 12 parts made at once.  They had to make them for all the plants - that's a lot.
General Discussion / Re: "DZ" grease pencil mark
« Last post by KurtS on October 14, 2017, 06:12:54 PM »
2 different markings. Both done by the engine plant.

- Side of the block, upside down to know what parts to load. Was painted over.

- End of head, broadcast code to help ID the block without looking at the pad. Used by both the engine and vehicle plants. I see them more in 67/8, but that's may be because the alternator is in the way in 69 or due the use of stickers.
General Discussion / Re: "DZ" grease pencil mark
« Last post by bcmiller on October 14, 2017, 05:34:51 PM »
There are potentially two different things we are taking about.

1. What was done at the engine assembly plant. The yellow markings on the block (such as 302) were put there to help the workers know which rotating assembly to install in the block. There were markings on the heads too, probably to help determine which heads to put on the block. The 302s got the heads with 2.02/1.60 valves. Whether this was done with grease pencil or a paint pen, I donít know. But these markings were painted over.

Jerry has seen many original cars and I quoted what he said above.

2. What was done at the vehicle assembly plant. Could some engines have gotten a code written on the head with a grease pencil? Possibly, but itís not the norm. By 69, big blocks had an broadcast code sticker on the valve cover. I canít say for small blocks. Flint and Tonawanda might have had different policies.

Try an experiment. Grease pencil a marking on the head of a freshly painted engine and see how long it lasts. I donít think it was done that way, but give it a try. Probably wonít last through many heat cycles on the front of a head. 

Itís graffiti. Like some restored cars with grease pencil markings for paint code on the firewall. Cars got them, but they were covered over by the firewall blackout paint. Grease pencil markings behind the rear seat generally survived, for obvious reasons.

Decoding/Numbers / Re: Caveat Emptor - Ebay Seller in Angola, IN
« Last post by Charley on October 14, 2017, 02:25:42 PM »
You can see the same pic in both sellers ads. He has had many Ebay seller names. He is getting much better at how he words his ads to keep himself out of jail.
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