New Polished Stainless Steel Long Tube Headers for LS Swaps fit 1960-87 2wd Chevy & GMC pickups and SUVs. 1988-1991 (Square body only for these years) 2wd models only, w/ LS Swaps These are for LS Swaps on 2wd pickups & are designed to fit square bodies. They do not fit vehicles originally equipped with LS Style engines. Features: Mandrel Bent Tubing Full 1 3/4" Primaries 3" Collector Merge Collectors V8 Engines CNC Machined Flanges Polished 304 Stainless Steel Fits LS Style Engines 4.8L, 5.3L, 5.7L (LS1), 6.0L, 6.2L. Does not fit 2014 and up LT series engines Note: For LS series engine swaps . These do not work on standard SBC or BBC engines. If using a larger 4L80E or older Turbo 350/400 transmission the bellhousing ears may need to be trimmed for proper clearance.