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Registered User
Join Date: May 2020
Posts: 2
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944 engine code
Hello, I've searched this and many other sites trying to figure this out. I recently purchased a bare 944 block thinking I was buying a 88 2.5 NA block. The numbers on the block are confusing. It appears to be a M44.11 engine (89 2.7L) but has a bore of 100mm. I don't care about the displacement just trying to figure out if it came with a 8 valve or 16 valve head and does it make a difference what cylinder head I put on it ? thanks for any input/help.
 
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05-02-2020, 08:05 AM
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Registered
Join Date: Sep 2011
Location: Florida
Posts: 1,949
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That’s a strange looking engine number, it even looks like it’s been messed with. Here is one of mine from a 1987 Turbo for comparison.
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Mike A 9TECHNIK | TRANSAXLE ÄRA 1986 944 (Street); 1986 944 (Track); 1986 951; 1989 951 (3.0L 8V); 2000 996 Cab. |
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05-02-2020, 09:29 AM
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Registered User
Join Date: May 2020
Posts: 2
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Yup, your right. that's what should be there and I expected it to show up with a M44.09, 46J xxxxx code. I wonder if the "HB" are the initials of the person that may have altered it. I tried tracking the part # casted into the side 944.101.210.2R and under that 0046/B (probably casting #) but got no where with that too. The block/girdle is in excellent condition with very clean cylinder walls. I was told it was from a 88 944 NA so I was/am going to use it to build a extra 8 valve track motor but not sure what I'm starting with. Thanks for responding, maybe someone here has an answer, if not I'll figure it out as I go.
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05-02-2020, 10:54 AM
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Registered
Join Date: Jun 2018
Posts: 411
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I wonder if it is a replacement block and hence does have all of the factory stampings.
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05-02-2020, 11:40 AM
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Registered
Join Date: Oct 2002
Location: Boulder, CO
Posts: 1,200
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One bolt hole or two on the front coolant passage?
One is the 104mm bore block: https://www.cometicgaskets.co.uk/wp-content/uploads/automotive/C4274a-500x205.jpg Two for the 100mm https://www.cometicgaskets.co.uk/wp-content/uploads/automotive/C4273a.jpg
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1987 928S4 1992 968 cabrio 2009 957 Cayenne GTS |
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05-02-2020, 12:48 PM
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