Don’t look away

Why are mechanics using massive spinning blades on car engines to unlock horsepower?! 🚀⚙️
When a car overheats, the extreme temperatures can actually cause the heavy metal cylinder head to warp and bend out of shape! If a mechanic just puts a new head gasket on a warped engine block, it will instantly blow out and leak coolant everywhere!
To fix this, professional engine builders use a massive, highly-precise milling machine to resurface the cylinder head! In this incredibly satisfying shop video, the machinist uses a massive fly cutter to slowly shave a microscopic layer of metal off the bottom of the block! As the spinning blade moves across the surface, it cuts away the dirty, warped material and leaves behind a perfectly flat, mirror-finish surface that will perfectly seal the new head gasket! While it does slightly increase engine compression, it is a required standard step for engine building! Huge respect to the machinists keeping these engines alive!