I'm not sure what size the radiator is. I'm pretty sure it is not 22" though. I thought the bigger radiators would be for the V-8, not the other way around. Are you sure you don't have a slant/6 radiator in there now? My car is at my buddies shop right now. I'll try to get up there tomorrow to loook at it. It does have a leak near the top though and the one bracket needs to be welded back on the top. Why are you converting from a V-8 to a slant? What all are you changing on your car other than the engine?