the 292 block is slightly longer than the 235, the water pump will come close to the radiator, you might not have the space for a fan and have to go with a electric one, I have put 250 L6 in a 53 2 door and a 54 Sedan Delivery, and for motor mounts get with John(Cut Master) he has them for sale unless you can fabricate some, Speedway has the rubber mounts for around 25 bucks, good luck.