REmin
New member
Hi , I’m new to this site . Hoping I can get some insight into an overheating issue with my car . 69 427/400 hp 4 speed no air . I have run into conflicting info on the proper configuration of the cooling system for my vehicle . At the moment I have a copper rad with an aluminum expansion tank but since I got the car on the road last year it has been running hot . My question is with a radiator with a 15 lb rad cap and a n expansion tank with a 15 lb cap as well , is this system going to work or where I don’t have an aluminum rad that wouldn’t have a cap on it should I forget the expansion tank and run the 3/4” heater hose direct from water pump to heater core and set up an overflow tank ? Sorry so long winded .