If the big boys could keep those hemis and big block Chryslers cool running around an oval at about 200 miles an hour I'm sure I can keep a small block cool doing 75.
Imo that's a huge difference!!!
Those engine where made to last one race and 500 miles and even then they didnt turn 4500rpm constantly! They let out in the turns Haha
Not to mention they have 200mpg of cooling air and race designed cooling ducts and huge radiators.