Love the mod! I grew up around N6 and N7 Gleaners, so there's lots of memories here. However, the motors you have listed aren't quite right. The N5 had the 426 (670T) motor out of a 7060 set at 190 hp at 2400 rpm, the N6 had an intercooled 426 (670HI) motor spinning a couple hundred rpm faster (I've heard it said it was a hot-rodded 7080 motor). It was 220 hp at 2600 rpm. The early ones had issues blowing up, so in 1982 they started using the upgraded 426 out of the 8000 series tractors instead (670I). 225 hp at 2450 rpm from the research I've done. The N7 on the other hand had the 516 engine out of HD11 dozers (685I). 270 hp at 2200 rpm. Not game breaking, just something I noticed.