Hi. I have a 1982 k30 crew cab 4x4 with np205 and was originally a 6.2. I have a wrecked m1008 that is in pretty good shape with 60000 original miles. I am wanting to put the 6.2 back into the k30. What do I need to change? I know torque converter but are radiators different? Sending unit? I have a whole complete donor truck. My k30 also has a gravity fed tool box tank can I still utilize it? Thanks. I am wanting to change back for fuel economy and reliability. I am going to eventually do a Cummins swap. The k30 is currently a 454 but was changed from a 6.2.