I am not sure about stock, but with very mild mods or even just boltons the 5.3 will way out perform the old Tbi motor. A small mild cam like a 212/218 cam will make a 5.3 crazy stronger than the old 5.7
I am not sure about stock, but with very mild mods or even just boltons the 5.3 will way out perform the old Tbi motor. A small mild cam like a 212/218 cam will make a 5.3 crazy stronger than the old 5.7
ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06
waiting to go in... 3.90s, 214/220cam
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