Thoughts on a 225 rebuild

GAMoparMan said
By 198 rod, I'm referring to the length. I agree that the Molner rods would be the ones to source. As far as piston selection goes, unless you'll doing some wild things on the motor, why would you spend extra on a piston if the "stock" 2.2 turbo piston can handle it.

The reason for the change over isn't just for compression ratio increase as milling could handle this alone..your adding torque due to the longer rod and also improving the rod ratio which improves multiple areas on top of increase the compression ratio. This change would fall under the "Improve efficiency" category of motor building to use with add-on's such as intakes, cams, headers, etc.

I am aware of the 198 rod length issue. There is really no reason to use the "long" rod on a mild street engine. On a slant six the main advantage of the long rod seems to be the engine is less prone to detonation. The long rod on a slant, has not shown a measurable increase in torque.
As you said "As far as piston selection goes, unless you'll doing some wild things on the motor, why would you spend extra on a piston if the "stock" 2.2 turbo piston can handle it". Why spend the extra money on a 198 rod. They are hard to find, and over priced when found, then still need to be reconditioned.