There's nothing wrong with a spray oiler- - - -some oldtime round track racers believed the non-drilled crankshaft was actually stronger than a full pressure crank. Just be sure the spray tubes are aimed correctly. The oil pump modifications I'm going to be doing will give about 20% more oil volume, which should cure the low oil pressure complaints on a hot engine, and also make the spray tubes squirt harder. I'm using Perkins Diesel engine rod bearings, which also allow a "worn out" 30 under crankshaft to be reground another 30 and use a standard diameter Perkins bearing insert. That also slows the peripheral speed of the bearing, something NASCAR engine builders do routinely when they use tool steel rods with Honda rod bearings. If a 9K RPM superspeedway engine benefits from a smaller rod bearing, why wouldn't the same mod help a stovebolt? Aluminum 235 pistons are a drop-in fit for a 216 with a 60 overbore, resulting in 224 cubic inches. That also gets rid of the bearing-pounding cast iron pistons.
I believe a 216 set up that way will give most 235's a run for their money, performance and reliability-wise.
Jerry
