Barr CR-1-97993 Port Manifold end riser for big block Crusader engines. Replaces Crusader part number 97993. Fits big block 454 and 502 CID, 7.4 Liter and 8.2 Liter. When replacing older style manifolds with bolt on water inlet fitting, you will need part 47 8112 water inlet fitting. Primed and Painted Crusader Blue. Note Gaskets and mounting hardware are included. Caution: Installer must clean primer or paint from all gasket mating surfaces prior to installation. Made in USA, 3-year limited warranty.