Old Race 340 Teardown
I bet its milled >400 thou. Run a tape across the china wall where it intersects the head and the intake, both my 273 and 360 measure very close to 7.5 inches. If its milled this will be <7.5. did you mention rod length? Those BME rods can be custom made to any length as the big end has a lot of room to offset. Even the little end looks to be forged long and they drill it to final length.
I bet its milled >400 thou. Run a tape across the china wall where it intersects the head and the intake, both my 273 and 360 measure very close to 7.5 inches. If its milled this will be <7.5. did you mention rod length? Those BME rods can be custom made to any length as the big end has a lot of room to offset. Even the little end looks to be forged long and they drill it to final length.