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We started out with a Dart SHP 400 short-block crate motor ($4,184.66). Available in configurations ranging from 372 ci to 400 ci-and with options like forged pistons, forged crank, and H-beam rods-a small-block Chevy SHP short-block ranges from $2,975 up to $4,695. We checked the order blanks for upgraded forged Mahle pistons, Scat H-beam rods, and a forged crank. The Dart SHP block is a veritable fortress of strength, with siamesed cylinder walls, a minimum of .230-inch wall thickness, played four-bolt mains, priority main oiling, and a safe bore size up to 4.165 inches.