headers 117 reducers available with oxygen sensor on 1980 and later models ... mount #12653 for turbo 350 120 will fit corvette d-port aluminum angle plug ... heads 121 will not fit with turbo 400 unless trans crossmember is ... only standard 16 gallon gas tank 125 will not fit 19771/2 and later lo-boy 126 ... and tapped to assure proper seal 127 will not fit angle plug heads 128 this ... header requires installation kit #12620 with turbo 350 saginaw 4-speed muncie 4- ... chevette rack and pinion steering 129 will not fit 1982 buick century front wheel ... system fits 1973-87 only 131 available with fitting to accommodate oxygen sensor ... add an x in front of the part number when ordering 132 this header requires ... and motor mounts from either 2 or 4 wd 1983 fords with a 460 135 this is a tri ...