White Box Long Tube Headers are engineered using mandrel bent tubing, formed collectors and 5/16 inch flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. These full-length headers are coated in a high heat resistant black paint and feature 1-3/4 inch primaries and 3 inch collectors. Fits 1965-1974 Ford F-100, F-150, F-250 2WD Ranger with 352,360,361,390,391,428 FE V8 engines.