The Stovebolt Site Forums The Parking Lot Big Bolts temp guage sender location on chevy 261?

I think the sender location is the only one you have on this engine. I would check the thermostat first. You can get a infrared temperature tester and check out the system. On the "original" dash guage the 3 marks are 140 180 & 200 degrees, if your needle is going past that 3rd mark or setting on the 2 in 220 your overheated.