A rad guy told me yesterday fan should be sticking approx 1/2 in and 1/2 out of shroud.
With my temp gun my stock 273 ac 3 core rad gives me 207* at sensor 176 upper rad hose 126 lower rad hose. 16 psi cap. Can't remember tstat but I think 190.
So a 50* drop at rad. Pretty good no??
Also rad guy said make sure coolant is NOT OAT technology NO TO PRESTONE. Google "OAT coolant"
Fan is about 2/3 inside the shroud. If I need to go to aluminum radiator, what are the recommends of type/how many cores and what vendor? I want to use the stock fan clutch setup.
