Yes the 10 1/2" bel housing will work if you change to or have the smaller (early) front bearing retainer. I put an 833 in my 78 factory 440 pickup back in 1981. Two things I had issues with. Even using the 11" disc that would fit the 10 1/2" set up, the clutch was never that strong and prone to slipping when pushed hard. My engine build was fairly mild at approx 450 HP. Secondly, using the stock pickup z-bar bracket that bolts to the frame, the alignment was not good and square. It worked, but would wear out the plastic bushings after a short time. I did run the pick up about 100K miles with that engine / trans set up with replacing the clutch once. Busings numerous times.