Kirkham Motorsports usually needs about 30 hours of computer-controlled machining to turn a 383-lb. aluminum billet into a 64-lb. engine block for its self-designed 427. Luckily for manufacturing geeks, they've shortened the process to seven minutes for this video.
While it looks like a button-pressing gig once in the machine, the programming for the CNC took 50 hours, on top of an additional 30 hours designing the block itself. And yes, the 319 lbs. of aluminum turned into metal shavings will be sent back to the foundry for recycling.