the headers are motorhome or 75ish 440 4x4 . they have the collector high on the passenger side to clear a front driveline . and i've made some cutouts for the racer look . that sends the 2 1/2'' exhaust pipes over the cross members for a cleaned up under side . truck pan is the same as class a m/h's . later i went with the 69 d series trans cross member and a 75 9 1/4 l/s 3.54 r/e out of a 440 ramcharger . next is a built 727 still cable shifter . but with the 71 up long bushing front pump n input shaft and a deep finned sump pan . its built just fining the time for that install . i used the same headers on my d200 440 swap .