Standard-Duty Silver Ceramic, 50-State Legal, Long-Tube Headers For 1971-91 CHEVY/GMC Class C Conversion Vans/Motorhomes with 283-400 SB Chevy Engine w/A.I.R. (Centered Engine Chassis Only); 1-5/8 in. Long Tubes; 3 in. Ball/Socket Collector
Standard-Duty, Silver Coated, 50-State Long-Tube Headers For 1971-91 CHEVY/GMC Class C Conversion Van/Motorhome with 283-400 SB Chevy Engine, No A.I.R. (Centered Engine Chassis Only); 1-5/8 in. Long Tubes; 3 in. Ball/Socket Collector
Standard-Duty Silver Coated, 50-State, Long-Tube Headers For 1967-87 CHEVY/GMC 2WD & 4WD, 1/2 to 1 Ton Pick-Up, SUV or Motorhome with 283-400 SB Chevy With A.I.R. (Centered Engine Chassis Only); 1-5/8 in. Tubes; 3 in. Ball/Socket Collector
Standard-Duty Silver Coated, 50-State, Long-Tube Headers For 1967-87 CHEVY/GMC 2WD & 4WD, 1/2-1 Ton Pick-Up, SUV or Motorhome with 283-400 SB Chevy Without A.I.R. (Centered Engine Chassis Only); 1-5/8 in. Tubes; 3 in. Ball/Socket Collector
Standard-Duty Silver Coated, Long-Tube D-Port Headers For 1967-87 CHEVY/GMC 2WD & 4WD, 1/2-1 Ton Pick-Up, SUV or Motorhome; 283-400 SB Chevy With D-Port Heads (Centered Engine Chassis Only); 1-5/8 in. Long Tubes; 3 in. Ball/Socket Collector