89mustangfive0

idk if its just me but ever since i put the mac 1 5/8 shorty headers on my car it seems to run hott like a bitch...i just put in a new 306 ( built) with an s-trim and it has 4 core radiator,16inch e-fan and wiring kit with a new 180 thermostat ( kit recomended)..i find that the under hood temp is horrible and the gauge creeps up to the N in normal at times..

zebo87

im not sure why its running hot but a suggestion. depending on the type of intake you have i suggest a phonelic spacer. i have a cobra intake and last year i put a spacer on it. now even in 80 deg weather the thing runs between 150 and 170 degrees pretty much most of the time. i didnt believe it would work that well until i saw it with my own eyes. sorry i cant help with the initial problem but thought maybe the spacer idea would be worth some thought.

Boss_Hotrod

Did you put the T-stat in the right way? The spring goes into the intake.

mjr46

you may have a restriction somewhere...........when does it overheat???

84conversion50

get a real gauge or infra red therm. all the stock one tells you is your above 0 and below 240

19905.0stang

did u take the velance out from under the car that is what helps airflow to the radiator while driving

89mustangfive0

nope valence is in...t-stats in right..where could i have a blockage? im gonna put my aluminum radiator in today also i pressure tested the car last night and it was loosing it. i noticed it was leaking a bit under the lower rad hose

dysfunction26

Damn that sucks man, some people just have no ethics.