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Different 312 main bearing caps

Posted By 46yblock 15 Years Ago
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46yblock
Posted 15 Years Ago
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Thankyou Bill.  These are the only ECZs I've ever seen.

Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.


aussiebill
Posted 15 Years Ago
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46yblock (4/3/2010)
I have 5 main caps taken from a 312.  Lined them up on a table today and noticed one had bolt holes that were at least 1/4 in. shorter than the other 4.  Numbers on 4 are ECZ 6329A, and on the oddball ECZ6325A.  The short cap came from the rear of block.  Dont recall reading that there were 2 styles of 312 caps.  Did the '57 312s have the shorter bolts?

Short one is rear one to clear rear seal housing lip.

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

46yblock
Posted 15 Years Ago
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Last Active: 12 Years Ago
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I have 5 main caps taken from a 312.  Lined them up on a table today and noticed one had bolt holes that were at least 1/4 in. shorter than the other 4.  Numbers on 4 are ECZ 6329A, and on the oddball ECZ6325A.  The short cap came from the rear of block.  Dont recall reading that there were 2 styles of 312 caps.  Did the '57 312s have the shorter bolts?

Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.




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