This is my first engine with alumn heads (AFR'S).My question is,it's been dry here just cold and i wanna drive the stang. At night it's been and going to be for the next 5 days in the teens to mid 20's,and the days are to be high 20's to mid 30's.So with these temps is it ok for the heads to heat up but then cool off to those temps?I have head studs and new coolant as well as fel pro head gaskets. I dont see it being a problem or wouldnt think it would be since they arent heating up instantly and then cooling down to those temps instantly,but just checking? peace
john
john


after all who dont? peace