Early style sb water pumps

You should read the story of Jimmy Addison and the silver bullet. He spent hours with the hole saw, cutting holes wherever they would not show. He also would trim off any excess threads of every bolt, and even cut the auto brake pedal in 1/2 just to save weight! In the end, I believe he cut over 200# doing just these examples, including over 30# of excess threads from bolts and studs!

I have seen those cars and am not into race cars, although I have been around them for 40 years. I am practical and have had many cars with early and late water pump systems. Just not that much weight to worry about. Heck, we even drilled bolts down the center, used titanium, aluminum, and plastic bolts or rivets. Race cars are a purpose built vehicle and not much good outside a 1/4 mile.