question im getting a 65 mm turbo gave to me for my project truck the motor that is going in my truck is a 95 cummins i just sent pump out getting delevery valves 4 gsk and bench flowed valve springs what would i need to run that turbo sorry i dont know much about the turbo all i was told it was a 65mm turbo and itt was free

 

65mm is the turbine/exhaust size. they can range from 57mm(super B) to a 64mm, guess you could go bigger but wouldnt be the brightest thing. a stock engine will spool a smaller 65mm turbine just fine.