Hedman Hedders 65003 Painted Hedders Exhaust Header Features: Highest Quality Materials Computerized Precision Hand Tested; Sturdy Leak Proof Welds Durable And Affordable Height: 9.63 Width: 18.25 Length: 39.25 Weight: 31.00 lbs Vehicle Type: 2694 Fitment: 1974/Chevrolet/Nova/Custom/5.7L 5737CC 350Cu. In. V8 GAS OHV Naturally Aspirated::Will Fit With Angle Plug Heads/Chevy Aluminum Only~ Universal Oval Port Design~ Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~ Will Not Fit Saginaw P/S 825 Series~ Modification To Stock Exhaust Required To Retain Catalytic Converter~ Legal Only For Racing Vehicles Which May Never Be Used Upon A Highway, Without Air Conditioning^^1974/Chevrolet/Nova/Custom/5.7L 5736CC 350Cu. In. V8 GAS OHV Naturally Aspirated::Will Fit With Angle Plug Heads/Chevy Aluminum Only~ Universal Oval Port Design~ ...