Thanks. All good suggestions. Will check each out today and advise results. And yes OD = overdrive pulley, so pump is turning faster than stock. For the record, have tried three thermostats and no thermostat as previously stated. The thermostats were 190, 180 and now currently 160. No change to max water &
oil temperatures by changing thermostats or with no thermostat. Just a different time rate to reach the max. temp. Also started with 100% H20 before switching to 50/50 H20/glycol for pump lubrication & corrosion reduction reasons.
Oil sensor was previously in
oil filter adapter on side of block. It is now removed and in pan at middle of oil level. No change in recorded oil temps. based on location.