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Author Topic: 010 cast blocks 302-350 with no casting date but m47 code  (Read 1349 times)
canadair
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« on: July 18, 2011, 09:40:39 AM »

are there any owners of the rare m47 date coded blocks and what months are these blocks used the ones I have seen are late production Aug through Nov 69 can anyone help.
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KurtS
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« Reply #1 on: July 19, 2011, 02:37:29 AM »

Read the bottom of this: http://www.camaros.org/drivetrain.shtml#BlockCast
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Kurt S
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canadair
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« Reply #2 on: July 19, 2011, 04:28:50 AM »

 Kurt I've seen the explanation for the M code on the CRG forum but my question was to find owners of theses vehicles and see  what months they where used and what cars got them.
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KurtS
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« Reply #3 on: July 19, 2011, 08:56:23 PM »

Since the M-blocks were used throughout the year to proveout various casting changes, there shouldn't be a pattern to usage or application.
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Kurt S
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canadair
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« Reply #4 on: July 20, 2011, 04:30:33 AM »

thanks Kurt I though that they where showing up in the latter part of 69 because of the extended run of 69 camaro's going into the 1970 prioduction year causing GM to use what was availabe to continue production have you seen many.
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KurtS
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« Reply #5 on: July 20, 2011, 04:09:21 PM »

But as far as a block goes, there were no changes for 70. GM was just in regular production mode.
I haven't seen many. And they wouldn't have made many either and some were scrapped.
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Kurt S
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canadair
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« Reply #6 on: July 21, 2011, 05:31:26 AM »

Kurt what is the earliest and the latest you have seen.I'm sure Jerry has a record of what he has seen.
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KurtS
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« Reply #7 on: July 21, 2011, 08:23:19 AM »

I've seen M coded blocks in late 68 MY and going thru late 69 MY.
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Kurt S
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melav8r
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« Reply #8 on: July 26, 2011, 02:14:15 PM »

If its a '010 block I would assume more than likely cast early in the run, April or May of '69.
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KurtS
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« Reply #9 on: July 26, 2011, 03:10:41 PM »

They would be to evaluate any change, process or design. Most of the M blocks I know about do not appear related to a block introduction date.
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Kurt S
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canadair
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« Reply #10 on: August 01, 2011, 07:27:14 AM »

Kurt where most you have seen in 302 z's Ive seen 2 both original to the cars late Sept and late Oct both vins detectectible by the oil filter
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KurtS
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« Reply #11 on: August 05, 2011, 01:45:21 AM »

Spread throughout the year.
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Kurt S
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