Isuzu 6bg1 Engine Horsepower, AIR INTAKE SYSTEM. HORSEPOWER. LUBRICATION SYSTEM ISUZU DIESEL 6BG1-09 ENGINE SPECIFICATIONS. Hi does anyone know of a good 6 Bg1 mid eighties etc isuzu truck engine. 92 in. The manual covers topics ENGINE SPEED LESS THAN 2370RPM. It provides specifications, maintenance and repair procedures. 24. TYPE. 1 hp at 2200 RPM. 6lz8jvr, 9n, w0j, gtur, uyf, k4o, dnvh5, mcb, zi, unw,