The all-new header features 1 5/8" primary 14-guage tubing, plus heavy 3/8" thick laser cut flanges with welded O-rings for maximum sealing the first time! The long primary tubes provide lots of low-mid range punch creating added horsepower & torque. NWOR's "No Gasket, No Leak" ball joint connectors allow maximum engine movement in the chassis without causing header breakage or gasket leaks. This hi-torque Ford V8 header offer the best fit, ease of installation, and clearance over any small block swap header sold!