Same here, If I recall the Ford I6 sizes is 144, 170, 200, 240 and 300 CIDs. I've seen the vintage engines got new life to be product massive horsepowers by use today's high technology electronic devices.
The only forged steel crankshafts in Ford gasoline powered I6 engines is 300 CID, they are for Heavy Duty commercial vehicles like UPS panel trucks. The 240 engines are for Light Truck like vans and pickups and has cast iron crankshafts.
