Ford 289 302 351 Windsor REMFLEX Sq Port Exhaust Manifold Gaskets # REM3029Ford 289 302 351 Windsor REMFLEX Sq Port Exhaust Manifold Gaskets # REM3029 PN 3029 Ford, V8, 289 351 Windsor, 1 1 8" X 1 1 2" Sq Port (Ports centered on bolt holes), Header Applications, 2 Set 1 1 8" x 1 1 2" Square Port (Ports Centered on Bolt Holes)Header Applications Suggested Torque Suggested Torque: 20 Ft Lbs