This is a new set of Stainless Steel Long Tube Exhaust Headers for 1967-74 Chevy, Pontiac, Buick, and Oldsmobile vehicles with Small Block LS1 LS6 engine swaps.  Part # V72

This quality 4-1 long tube off-road header for 1967-1974 Chevy Pontiac Buick and Oldsmobile chassis swapped to the new LS based engines are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the small block LS1 and LS6 engines (will also fit truck engines swapped to LS1, LS6 style cylinder heads). This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound. For LS V8 engine swaps only.

Features:
  • Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
  • Maximizes Smoothest High Exhaust Air Flow Rate
  • 4-1 High Performance Design, Produces the Most Top End Power
  • Offers the Best Flow Characteristics for the Engine at High Engine Speeds
  • Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
  • For Chevy LS V8 Engine swaps only
  • Inlet: 1-7/8" OD
  • Outlet: 3" OD
  • 16 Gauge Wall Piping
  • 3/8" Exhaust Manifold Flange Thickness
  • TIG Welded CNC Machine Flange
  • O2 Sensor Bung Insertion
  • Metal Gaskets and Mounting Hardware Included


    • Note: For LS V8 Engine Swaps only.  Flanges are steel.  Does not include collector flanges.