Bore of BigCam engine = 5.5 inches Stroke of BigCam engine = 6.0 inches Therefore displacement of one cylinder = pi * (radius squared) * stroke = 3.14 * 2.75 * 2.75 * 6 = 142.4775 Square inches Therefore displacement of the engine = 142.4775 * 6 = 854.865 (rounded = 855) Square inches N = N series engines Includes N855 and N14 engines. This Power 3® engine combination would be a great replacement mild street for a Mustang, Cougar, Fairlane, Gran Torino.. The 410 HP engine (as featured in the photos to the right) has a mid to rough idle, and its Comp Cam Kit cam puts out 410 HP at 4400 rpm and 458 - 460 ft lbs of torque. The complete Musi 632 cubic inch engine, Big Victor cylinder heads, and Big Victor and Super Victor intake manifolds will be on display alongside Musi's Edelbrock-backed Pro Nitrous machine. After the announcement, Pat and Lizzy Musi will be signing limited edition posters in the Edelbrock booth until 3:00 PM.