This is the front of the West Coast chassis. It was designed to accept (as standard) a 460 engine. Mine has the optional 7 core radiator. Flex-A-Lite 150 fan (2800 cfm). A very heavy but rigid frame. 11 inch ventilated discs. Got it as a 'rolling chassis', so the build quality and alignment of parts are not questionable. Rides like 'on a rail'.