Outright victory in the Xtreme Division of the AMSOIL Engine Masters Challenge doesn't come by chance—every factor has to be executed to perfection. Start with the engine combo. Here, the choices are wide open, but the 2012-winning School of Automotive Machinists team selected an entry based upon the small-block Chevrolet SB 2.2 NASCAR components. Success in the Xtreme division demanded starting with a successful engine combination. As SAM instructor Chris Bennett tells us, "The SB2 was one of the best NASCAR engines. From my standpoint the valvetrain is very nice, it has long-pivot rockers, there is a lot of room for the pushrods, it has a great pushrod angle, and great looking geometry.
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