84 Deville Thermostat Housing Bolts Diesel Engine
 

Hi All-

Im a newbie mechanic so bear with me. I replaced the thermostat recently and somebody (remaining nameless!) misplaced my thermostat housing mounting bolts. Anybody have an idea what size of bolts I need or what the best way to go about replacing these are?

I bought a couple at the hardware store but they dont seem to be the right size. I don't want to run them in cause they thread into the block and if they are wrong I am sure that will cause me some problems...If you have an idea what the bolts are or even a picture so I can get the right ones. Any help appreciated thanks in advance!!!!

-jxer00