Jason - would appreciate hearing what the problem was/is with your motor. My own Stroker 351W (396/408 depending how you calc it) is fine in "normal" street use, but get on it on the track and the oiltemp climbs and climbs until I have to back off and cool it down for a couple of laps. I have even tried electric fan assist to the
oil cooler to try to help but to no avail. Up on the stands in my garage I have run the engine on no load but 2500 ish rpm and been surprised and a little concerned at how much heat goes into the
oil. In all other respects the engine runs just fine and has given healthy BHP on the dyno. Water temps OK. I can only surmise that mechanical "shear" is heating the
oil somewhere - maybe your own experiences could give me a lead.
At one time I measured temps of 130 degrees C in the sump using accurate thermocouple type electronic thermometer. Not so bad now I have increased the size of the oil cooler, but still a concern.
from a cool and wet UK
Wilf