351w 93 mustang overheating
Thread Starter
Joined: May 2019
Posts: 13
From: AZ
351w 93 mustang overheating
I've looked at all possibilities on way my 351w 93 mustang keep overheating up to the 240-260. I've installed a new 2 core aluminum radiator w/fan shroud , high flow water pump, two 12" fan each one rated 2150cfm , 180 deg thermostat. The fans thermostat is set at 185 to come on and off at 175. I've checked for blown head gaskets with the block tester fluid and there are good, I've used a Mark VIII fan on the high speed and it still overheated does anyone have an idea on what I may have over looked, thanks. 351w trickflow intake, 1.7roller rockers, F303 cam, long tube headers, Holley hp efi ,255lph fuel pump
2nd Gear Member
Joined: Aug 2017
Posts: 489
From: North Carolina
351w 93 mustang overheating
35nomoon, Sounds like a proper set up to me . The only thing I can think of is; if you have a "serpentine" belt then the water pump direction should be "counter clockwise." If you have a regular V-belt then the pump direction is "clockwise." I went crazy with over heating, in a 331 stroker in a 1978 fox body until I checked the water pump rotation. Yup, you guessed it, the installed pump was rotating in the wrong direction. Problem solved. If you have the correct rotating pump, get back to me.
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