The Ford Barn - View Single Post - How is '54 Yblock (239) water pump different than all later ones?

Daves55Sedan · 04-09-2019, 08:44 PM

The 1954, 239 Y-block that was used in cars has a smaller water pump than the '55 and later Y-blocks. Some of the '54, F100 pickups may have had the smaller pump, but at some point in the '54 model year, Fomoco started making the pickup truck 239 Y-Block at a different foundry and those had the larger water pump that fits all 272/292/312 engines.
Bottom line; the cast iron timing chain cover on the '54, 239 is different than the one for the 272 and later engines and the water pump is not interchangeable between the '54 car engine and all the later Y-blocks.

04-09-2019, 08:44 PM	#2
Daves55Sedan Senior Member Join Date: May 2010 Location: Granite City, Illinois Posts: 3,008	Re: How is '54 Yblock (239) water pump different than all later ones? The 1954, 239 Y-block that was used in cars has a smaller water pump than the '55 and later Y-blocks. Some of the '54, F100 pickups may have had the smaller pump, but at some point in the '54 model year, Fomoco started making the pickup truck 239 Y-Block at a different foundry and those had the larger water pump that fits all 272/292/312 engines. Bottom line; the cast iron timing chain cover on the '54, 239 is different than the one for the 272 and later engines and the water pump is not interchangeable between the '54 car engine and all the later Y-blocks.