We now offer our awesome 2250 Heavy OEM engine mounts in a complete kit which includes the brackets and all bolts you will need to bolt a big block in a 1966-72 B body, 1970-74 E Body, or a 1966-73 C body. Big block and small block cars use the same K member for these years, so even if the car was a factory small block car, this kit will allow a big block to bolt right in just as if it had come that way from the factory.