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72 RS 351
Senior Member Joined: 04-September-2014 Location: Knoxville TN Status: Offline Points: 2765 |
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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; |
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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Allceayt
New Member Joined: 18-August-2020 Location: California Status: Offline Points: 16 |
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Thank you I will give a check tomorrow and email back.
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Thank you very much.
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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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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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J Moore
New Member Joined: 18-October-2020 Location: Washington NC Status: Offline Points: 36 |
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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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72 RS 351
Senior Member Joined: 04-September-2014 Location: Knoxville TN Status: Offline Points: 2765 |
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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.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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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.
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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jherb10
Member Joined: 12-July-2018 Location: York, Pa Status: Offline Points: 53 |
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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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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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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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Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
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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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"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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His Track Boss blocks use the small-block bolt pattern. He doesn't make any 400 blocks, they are all 351C. My block and heads are original to my car, and it has the big block pattern.
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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