454 vs 5.3 LS swap 1 ton Crew Cab 4wd opinions

[dylanr1]

Hi all, been a long while since Iv logged on here, sorry for being away lol.. okay so like the title says, my 6.2 diesel has finally let me down (head gaskets). I picked up a complete LM7 5.3 with 130k on the cheap as winter project.
Well, since the headgasket issue on the 6.2, I’m debating what to replace it with, and believe me, Iv exhausted the research on here and other sites so much I decided I need outside opinions. I can get a low mile GenV 454 (tbi) for under 500 bucks..I know theyre the least desirable gen but Iv had one previously and have no real qualms about them, despite their shortcomings they’re reliable and easy to work on. My goals are: Enough power to make such a heavy truck half fun to drive, reliability, not spend a fortune. Mpg is of no real concern, this truck only gets driven here and there during warmer weather. So, 5.3/cam/springs/holley terminator x/China turbo or BBC/cam/springs/rpm airgap/aftermarket efi?
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