Review on 🔧 Spectre Performance 46723 7/8" Header Bolt: Enhanced Fastening Solution for Optimal Performance by Warren Hess

I used these cap screws on my Custom Rat Rod Econoline. First of all, this kit is for a 6 cylinder engine. So if you have a V8 you will need two kits. I didn't notice that when I first ordered it. Finally, as others have pointed out, the hex tool is NOT for tightening screws! If you try, he will undress. There was even a little piece of paper in the kit where it says so. This tool easily helps you to tighten screws by hand. This helps when trying to turn a nut in tight spaces.