Won't fit a 5.3 as those heads require at Least a 4.00" bore minimum.
Won't fit a 5.3 as those heads require at Least a 4.00" bore minimum.
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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