Swapping the 454 out for a 5.3 in my shitbox was the best thing I ever did. Drivability went up 10 fold, fuel mileage more than doubled, and the get up and go dramatically improved. My truck is just a cruiser, doesn’t really tow anything, and it for having fun. I don’t need big gas sucking power. I was considering going with a 6.0 but I found a 2005 truck with 158,000km that was smashed and got the whole thing for $1000. All I HAD to buy were mounts, fuel pump and made my own lines. Also reworked the harness myself. I used the e fans, pedal, tac module etc all from the donor.
But this is just my experience. Everyone else’s may differ
But this is just my experience. Everyone else’s may differ
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