these are the popular header for the 4x4 obs swap.
http://www.summitracing.com/parts/psm-72c2265
these are the popular header for the 4x4 obs swap.
http://www.summitracing.com/parts/psm-72c2265
i used the pacesetter long tubes for the newer chevys also 99-08 or whatever. my truck is a 94 4x4 with a lift, didnt have too much trouble fitting them
Silverado Z71 10" Lift COMPLETE 6.0/4L80E PRC 2.5 Ported LS6 Heads 228r Comp Cam 3200 CIRCLE D Stall LS7 Lifters ARP Bolts SLP Oil Pump and Double Timing Chain 160 T-Stat 3" SLP Loudmouth Electric Cutout Walbro 255 Pacesetter Longtubes MSD Starter NELSON Harmess NELSON Street/Strip Tuned ECM MSD Wires LS1 Throttle Body Braided Lines Spectre CAI 4.56 Gears Detroit Locker 14 bolt http://www.ls1truck.com/forums/lsx-t...wap-build.html