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Brian Crower Mitsubishi 4G63 Stage 4 Camshafts - Full Race Spec


BC high performance camshafts are ground on state-of-the-art CNC cam grinders to insure accuracy and tolerances to within .02mm. Every BC camshaft profile has been prototyped and dyno tested for proven horsepower results prior to being placed into mass production. By grinding cores in high volume, Brian Crower, Inc. is able to pass the cost savings on to the end user. Quality at an affordable price. All BC cams are checked on a high speed, sub-micron accuracy measuring gauge. The Adcole Camshaft Measuring System uses individual measuring heads for each cam journal and cam lobe, with .01 micron resolution, taking one datum point each 1/10th of a degree or 3,600 data points per revolution. Measuring camshafts for rise error and chattermark detection, this model can measure 200 parts per hour.

New and improved Stage 4 profile features more duration for added rpm potential and horsepower gains. Requires tuning and mods as well as BC0100 or BC0120 kit.
Adv Dur 284°/280°
Dur @ .050 230°/226°
Valve Lift (1.7:1) .450"/.450"
Valve Lift (mm) 11.43/10.92

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