Thread: Any value in a 21 stud flattie?
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Old 02-03-2024, 11:54 PM   #28
cas3
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Join Date: Jan 2011
Location: sw minnesota
Posts: 4,600
Default Re: Any value in a 21 stud flattie?
The reason 37 blocks are popular is you can dress them up to look like an early block, but you no longer have the Babbitt bearings. Sorta like a 36LB, but with water pump options
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