The Ford Barn - View Single Post - G-series vs H-series Flat Six BH's

rotorwrench · 09-30-2024, 05:41 PM

If I remember correctly, the H series six cylinder engines had a plate that bolts to the engine and the clutch housing bolts to the plate. The G series had a full clutch housing that attached to the engine. The fit there is likely the difference. The transmissions didn't change much in the years from 1932 up through 1950. In 51, the gears changed in all the Ford 259 series transmissions to what was referred to as the diamond shaped gear tooth. For pickups, the top shift was used for one more year period which was changed over in 1952 at some point.

09-30-2024, 05:41 PM	#9
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 18,007	Re: G-series vs H-series Flat Six BH's If I remember correctly, the H series six cylinder engines had a plate that bolts to the engine and the clutch housing bolts to the plate. The G series had a full clutch housing that attached to the engine. The fit there is likely the difference. The transmissions didn't change much in the years from 1932 up through 1950. In 51, the gears changed in all the Ford 259 series transmissions to what was referred to as the diamond shaped gear tooth. For pickups, the top shift was used for one more year period which was changed over in 1952 at some point.