SOMBOY'S 03 SILVERADO
6.0L LS HEADS
Ported Vs. Stock
Close Up Of The Exhaust... Big Difference!
Little Work On The Valves Goes A Long Way!
Exhaust                                                                                       Intake
Ported                                                                                         Stock
Close Up Of The Intake... Big Difference!
Ported                                                                                                        Stock
Ported                                                                                                     Stock
Ported Heads & New Rockers Installed
Stealth Mode!