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JSeery · 04-07-2015, 02:48 PM

Per NAPA site that is a 170° thermostat, that is a little on the cool side for a clean and efficient running engine. Needs to be a least 180° and I would want a 185 to 190° myself.

04-07-2015, 02:48 PM	#5
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Thermostat for 48 f1 truck Per NAPA site that is a 170° thermostat, that is a little on the cool side for a clean and efficient running engine. Needs to be a least 180° and I would want a 185 to 190° myself.