Check out this video of our Golen 4.6L Jeep Stroker Engine after it's been fully broken in on our Super Flow Engine Dyno. During the break-in, we seat the rings, swap out the oil twice, cut open and inspect two oil filters to make sure there’s no unwanted debris, retorque all the fasteners, check for leaks or weird noises, and confirm the oil pressure’s solid. Once we're sure the engine’s running smooth, we kick it up for full rpm sweep tests to measure the horsepower and torque, just like you see here.