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05-04-2015, 12:01 PM
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#1 |
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Registered User
Join Date: Nov 2010
Location: Warner Robins, Georgia
Posts: 5
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Help identify motor
When I Bought my 68 I was told it had a 350 in it. I pulled the engine yesterday and started looking at the numbers on the block and was wondering if you guys could help to identify it. Casting #3970010 Date code J0377 and ID number on the front pad is MK21289. From what I can find the 3970010 could be a 350 or 327. Also I found something that says the MK on the ID number is a 327 built in 1967. The block was made in Mexico if that helps. If anyone could help I would very much appreciate it.
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05-04-2015, 05:18 PM
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#2 |
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Registered User
Join Date: Oct 2009
Location: Tampa Bay
Posts: 1,549
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Re: Help identify motor
Hi Droy014, Welcome to the board. Your block is a 1977, 350, crate manufactured in Mexico
J0377 J=October 03= 3rd day 77=1977 MK21289 MK=I don't have a decode for crates, but that is a Mexico prefix 21289=part number 3970010=in 1977 that's a 350 Hope that helps 
__________________
CHEVY/GMC VIN DECODERS |
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05-04-2015, 06:50 PM
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#3 |
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Registered User
Join Date: Feb 2011
Location: Modesto, CA
Posts: 2,189
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Re: Help identify motor
Bruceman is right on. To add a little disappointment perhaps. There is no way to figure out the rated hp/tq for a crate. The best you can do is remove the cam and inspect it for a part number. However, the cam is the only component separating a 260 or 290hp 350, and once it's out its too easy to swap in anything you want.
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05-04-2015, 10:08 PM
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#4 |
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Registered User
Join Date: Nov 2010
Location: Warner Robins, Georgia
Posts: 5
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Re: Help identify motor
Just want to say thank you to you guys that gave me the info I was looking for.
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