I’ve been finishing my 420 project. I was calibrating my oil pressure gauge and noticed the plastic bottles for washer and brakes were getting rather warm as they felt like they were starting to soften. Also my brake and clutch master cylinders were getting so hot I could barely touch them. It explains why my brakes feel slightly softer after driving a bit in the warm weather we’re having as it may also be part of my recent clutch problems as it happen again tonight where it pumps up and holds pressure. Once it cooled down its back to normal.
I have only an electric fan so now have less air movement under the hood unless the electric fan is running. The original clutch fan would move some air all the time.
With that said how about a custom heat shield by the exhaust manifolds?