Well I started having some cooling issues with my 69 RR built 440 with cooling last year. Problem would occour when the ambient temps were about 75 or warmer. A few days ago I drove in 55 degree weather and it started getting hot. I do not currently run a thermostat in the car. The thing that has me confused is that there was so much pressure in the upper and lower hoses I could not even squeeze them a small bit. Tested the cap and the cap actually tests bad but for not holding enough!! Water flows like crazy when I had tested this before. Is it time for a new radiator? possibly aluminum? If so is Smith's a good brand?? Thanks I know multiple questions!!!!
