J-Series Blade Chart Model L70JM Description 67”-70” propeller for most 4cyl A/C and DD Small Block V8 applications up to 200hp, 70J has a 10” maximum width, L/H rotation only. 69”-72” faster propeller for 4, 6, and 8cyl applications up to 350hp, 72JN has a 8.5” maximum width, L/H rotation only. 69”-72” propeller for 4, 6, and 8cyl applications up to 350hp, 72JM has a 11” maximum width, L/H rotation only. 69”-72” propeller for 6, and 8cyl applications up to 350hp, 72JW has a 12” maximum width, L/H rotation only. 74”-76” propeller for 6, and 8cyl applications up to 400hp, 76JW has a 12” maximum width, L/H rotation only. 76”-80” propeller for Auto & A/C Engines with 1.8-2.3 reductions up to 500+hp, 80JW has a 12” maximum width, L/H rotation only. 78”-82” propeller for Auto Engines with 2.0 and higher reductions up to 800+hp, 82JR has a 13” maximum width, and is available in L/H & R/H rotation. 78”-82” propeller for Auto Engines with 2.3 and higher reductions up to 1000+hp, 82JX has a 14” maximum width, and is available in L/H & R/H rotation. *PLEASE NOTE, J-SERIES BLADES WILL ONLY MOUNT IN CURRENT "”V” SERIES HUBS PRODUCED