Quote:
Originally Posted by Chris Marshall
Another interesting Elgin. 3 7/16 X 3/16LC. I actually still have the block this was run in. In accordance with popular folklore, the block is a 99 factory relieved Merc block. Not much head gasket sealing surface visible with that 3 7/16 bore!
All these pistons are mounted on 21A rods for stroked merc cranks.
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Looks like a Jahn's casting to me . . . wonder if they Private Labeled them?