This is a set of Hooker headers part #HKR6811. They look new and uninstalled. Designed to fit 1973-1979 F150 thru F350 with a 460 engine. Two wheel drive. Compatible with power steering, power brakes,A/C, automatic with column or floor shift. 17/8 tube and 3 inch collectors. Summit wants almost $900 for these headers. These will cost $450.00.