05-30-2024, 05:50 PM
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#1 |
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Senior Member
Join Date: Mar 2018
Location: Florida panhandle
Posts: 202
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Whatisit?
Have a NOS block, dunno what, I am going to get the light rust boiled off, code says 4 bolt main but not seeing that. Know flatheads & learning 289’s but not these things. Ideas?
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05-30-2024, 06:37 PM
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#2 |
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Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,581
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Re: Whatisit?
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05-30-2024, 06:37 PM
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#3 |
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Senior Member
Join Date: Mar 2013
Location: Kent, WA. Tucson, AZ
Posts: 1,426
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Re: Whatisit?
Even blown up I can’t seem to read the numbers on a tablet. But a 4 bolt main is usually pretty obvious looking at the block
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05-30-2024, 06:44 PM
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#4 |
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Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
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Re: Whatisit?
 'Ya know ... It's posts like this that make me insanely jealous ...  ...I just happened to have this laying around NOS... show-off ...
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05-31-2024, 08:33 AM
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#5 |
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Senior Member
Join Date: Mar 2018
Location: Florida panhandle
Posts: 202
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Re: Whatisit?
Fresh views, pulled it out of a semi trailer Wednesday, dealership cleaned out in ‘79, suppose I should get it cleaned even though I am not going to use it.
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05-31-2024, 08:44 AM
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#6 |
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Join Date: Dec 2012
Location: Anchorage Alaska
Posts: 292
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Re: Whatisit?
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05-31-2024, 05:16 PM
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#7 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,522
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Re: Whatisit?
If a person plays around with this stuff long enough, they can looks at those numbers and tell a lot about what it was meant to fit. With Ford's first digit being a decade code and the second being a year of change code then they just have to know what the other numbers mean. The 335 series engines were basically the 351 C and the 400. The 400 changed the family, ie 351M, early on and the oil embargo in the early 70s slowly killed them off.
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05-31-2024, 05:22 PM
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#8 |
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Senior Member
Join Date: May 2012
Location: Queensland, Australia
Posts: 10,447
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Re: Whatisit?
Numbers on a NOS Block - Rodrelic |
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05-31-2024, 05:23 PM
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#9 |
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Senior Member
Join Date: Mar 2018
Location: Florida panhandle
Posts: 202
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Re: Whatisit?
Thank you very much. Would it be good to get it cleaned up or put it out there as is? Don’t believe I will get into this, got too many flatheads
Last edited by Rodrelic; 05-31-2024 at 05:29 PM. |
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06-01-2024, 01:55 AM
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#10 | |
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Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,581
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Re: Whatisit?
Quote:
The BLOCK CASTING ID NO. will be the same for a 2-bolt main or 4-bolt main. The 4-bolt main block was subjected to a different machining protocol. That would give it a different ENGINEERING PN. Find a 351C FORUM and advertise it there. I wish I were still young as these things would run. I had one in a 73 RANCHERO (351CJ) and it would fly and it was a smog motor with a 4300D CARB on it. Perfect swap for a '57.
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