This special pistons are specifically 100% CNC machined from high quality special processed blanks and are specifically designed for high horsepower road and drag race engines. This pistons feature internal and external machining to unique shapes dedicated to its special application so that rigidity of the final piece will be increased and heat dicipation will be such that stress concentrations experienced in high boost / high reving engines will be reduced. The special designs made under the billet piston formats are very difficult to be produced with forging process. Unlike high production forged pistons, the billet pistons are machined on every surface allowing for all unnecessary weight to be removed during manufacturing and also can deliver a highest uniformity of material thickness on skirts and general body which is not possible with plain shaped forgings. The result of this process is a weight reduction designed for high horsepower road and drag race engines. Billet pistons are machined from precision turned billets, heat treated with the highest T6 accuracy and uniformity from fully certified material made under dedicated productions especially for our own use.