need advice: 440 in a Duster

First thing you might consider is -what am I going to use this car for? Is it for the street or strip, does it have to corner or just go in a straight line? When you`ve answered that question then you can proceed with the build. Remember that once you`ve installed a big block in one of these cars that the rest of the car has to be able to keep up. That means upgrading the brakes and suspension as well as the differential,cooling system, exhaust,and finding some way to get all that hp to the pavement. As mentioned Schumacher creative services offer a lot of kits that`ll allow you to install a 440 with most all K-members. Their headers eliminate trying to find the expensive factory bb A-body exhaust manifolds and you`ll need a special oil pan that has a relief in it for the idler arm to swing into. Usually the number 187 or 699 will appear on the pan. HTH , looking forward to progress pictures!