I was reading around some and I had a couple question on filling blocks with something like hard bloc. Now the oil temp runs hotter but the coolant temp is lower, correct? Therefore you should run an external oil cooler. Should you pump through the cooler into the motor or should you return oil from the block through the cooler back to the pan? Could you run the oil through a water-side heat exchanger like an automatic transmission does? How do you size a cooler for a filled motor? Is it possible to run a filled block on the street if you have enough oil cooler? Does using sythectic oil help? I read when you fill a block, you should torque down a deck plate while it hardens, can an usless head fill in for a deck plate? What other problems arise from filled blocks aside from high oil temps and a heavier block?
