79gmccrewcab1t
Registered User
I am at the start of transplanting a 1990 non intercooled 12 valve from a school bus into my truck and had a few questions about this engine. From what I read cummins changed the injection pump in 1991 and added a intercooler to the 12 valve, can either one of these be adapted to my engine, and do I need to go to a larger turbo before I add on a 4''.
Also what kind of torque and horse power can I realisticly exspect from this engine without reinventing it? Any help would be greatly appreciated
Also what kind of torque and horse power can I realisticly exspect from this engine without reinventing it? Any help would be greatly appreciated