Ok i have been looking around at turbo's breifly to swap onto my 6.2L and i am seeing GM-3, Gm-4, GM-5 ect what are the diffrences in the turbo setups? I have a line on a GM-3 and GM-4 but don't really have a clue what the diffrence is. Thanks. Stew
Hello? Somebody please....Although I consider myself quite knoledgable in the 6.2 and 6.5 field, this is always a question I have wondered and would love some insight. I mean obviously there from different applications, but whats the real differences? Turbine wheel size? input output size? Input output location? Etc Etc
Basically, the numbers reflect the various models through the years, and got better later in the production of the 6.5. From a reputable source at another 'Place:
