i am putting a 4.8 in a 4x4 91 s10 blazer right now...just na for now..i welded up the egr ports on some exhaust manifolds and they weld really easy. i used my tig welder and used mild steel filler rod..i was hoping i could turn those truck manifolds forward and down on my GN..the up and forward doesn't look good to me...as soon as someone gets around to using the truck manifolds on a GN i hope they post some pics...............Bob