With the heads having the valves completely swapped in position I would imagine the existing headers wouldn't fit.
With the heads having the valves completely swapped in position I would imagine the existing headers wouldn't fit.
ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06
waiting to go in... 3.90s, 214/220cam