Motor Plate, Front, 36 x 12 x 1/4 in Thick, Aluminum, Natural, Mopar B / RB-Series / 426 Hemi, Each. A leader in chassis development and quality, Chassis Engineering has been building chassis kits and components for the drag racing, hot rodding, and high-performance markets for more than 35 years. Chassis Engineering produces everything from individual frame and suspension components to complete racing chassis. 1 / 2 Piece.