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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2020 at 3:51PM
Originally posted by J Moore J Moore wrote:

Welcome to the forum !  You have a nice car there.  It's possible that 400 might have the Windsor small block bolt pattern. Early 72 400s had it.  J.


That's a great thought. The small block 400's were super rare. A 400 isn't popular, but people who do like them would appreciate the small block version.

Check the transmission, the big block pattern trans has a larger mounting pattern. It's hard to tell unless you are familiar with both sizes. I think the top two bolt locations tell the biggest difference, the two on a big block pattern will be higher up. I have one picture of a small pattern 400. See below, there is a gap from the rear top edge of the block, down to the two top bolts of the trans;



Don
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Allceayt Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2020 at 4:48PM
Thank you I will give a check tomorrow and email back.
Thank you very much.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2020 at 6:00PM
Didn't the block pictured have both patterns? 

A quick check of the casting number above the starter will give you the info as well. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote J Moore Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2020 at 11:56PM
To check for Windsor/ Cleveland bolt pattern, measure the width of the top two bolt holes. The W/C pattern is 5 inches, the common 351M/400 pattern is 7  3/4 inches wide. The 429-460 engines also have the wide 7 3/4 pattern.  The attached image is from Fordification.com that outlines the two patterns.  J.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 20-November-2020 at 2:34AM
I need to take a picture of my bare 400 block, I know it's the large pattern. The regular 400 block doesn't have both of those mounting pattern bosses in it. I wish they had kept making the original one like that, with both patterns possible.
Don
73 Ranchero GT 351C-4V 3.70 gears, to build a keeper
73 Ranchero Sport "72 front end", floor shift/console, planning EFI 351-3V &4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Posted: 20-November-2020 at 10:58AM
I have a '72 400 and it's only the large big block bell housing pattern, like the vast majority of 400s.  From what I have read over the years, it's the 1973 400s used in full size cars with FMX transmissions that had the small-bock bell housing pattern. Regardless, they are rare.
Vince

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Post Options Post Options   Thanks (0) Thanks(0)   Quote jherb10 Quote  Post ReplyReply Direct Link To This Post Posted: 20-November-2020 at 4:27PM
Hi Allen

Welcome to the forum. Great looking LTD that you have. I use to have a 72 LTD convertible. I owned it for 14 years and went through everything to make it a reliable driver. It also had a 400. Good Luck

John
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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 7:19PM
Vince, 

Are T Meyer blocks all C6 big block pattern? I wonder if he ever thought about casting them with both? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Big Bird Quote  Post ReplyReply Direct Link To This Post Posted: 11 hours 22 minutes ago at 10:40AM
There were 400s made with the bosses/webs for both patterns. Many of those blocks were only drilled for the big bell. Some of those blocks also have the bosses for the small block ford mounts.
Some have only one side, and I've never seen them drilled from the factory.
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