1999 K2500 ext. cab. '97 VIN S 506 squirter block engine (EGR delete). Leroy's upgraded oil cooler hoses. Bosch Duraterm glow plugs. Fluidampr & Leroy's crank pulley. Diamond Eye 4" exhaust and crossover. Cylinder style air filter. 4L80E, G80 & 3.73.
To do: ARP studs, GM8 turbo service, aluminum radiator, Walbro FRB-5 lift pump & pre-filter, and a good 'ol deep clean of the engine.