... in a 67 Barracuda that had a 273 in it, you can fit a 360, 10.5" 360 flywheel, 10.5" Centerforce clutch, original 273 bellhousing and hook up the driveshaft. When you try to install the starter, you'll discover that your 273 bellhousing is not for 10.5" flywheels and clutches and you need to order a 10.5" bellhousing.