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What are these out of???

Old Jan 27, 2014 | 07:19 PM
  #1  
Olds442redberet's Avatar
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What are these out of???

So, not knowing what they were, I bought them. LOL, seriously, what are these out of. Anybody have any idea.

6 inches center to center
3 & 15/16th bore

AO 434 on one side and 283TH on the other.

Some have other marking such as BO 437

The weights on the piston, balanced connecting rods.

Thanks
Old Jan 27, 2014 | 07:23 PM
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pics

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Old Jan 27, 2014 | 07:27 PM
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A pic please?
Old Jan 27, 2014 | 07:27 PM
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timing....
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