early 273 pistons.

yeah, Im sure they are not the OEM 2 brow pop up 4bbls. The 68-69 .001 pistons were never used with the closed chamber heads so Im wondering if these pistons are stock or aftermarket. and what the CR was with this combo. Im not really after compression as this will be a turbo motor and I already have the turbo camshaft. Maybe flip 'em for some open chamber heads...

Ouch, I should have snapped those up. Never saw them.