FIT 67-74 SBC V8 LS/LS1-LS6 LSX SWAP STAINLESS LONG-TUBE HEADER EXHAUST MANIFOLD

Kaotic Speed 4-1 Long Tube off-road headers 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 LS based truck engines 4.8/5.3/6.0). 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.
 
 
Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability i.e. Maximizing Smoothest High Exhaust Air Flow Rate
4-1 High Performance JDM Racing Spec. 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/ Outlet: 1-7/8" OD / 3.00" OD
6-Bolt Exhaust Outlet Flange
16 Gauge Wall Piping
9mm Exhaust Manifold Flange Thickness / 8mm Collector Flange Thickness
TIG Welded CNC Machine Flange
O2 Sensor Bung Insertion and Metal Gasket Included
 
 
Includes:
 
1 x Set of Exhaust Headers
Hardware as Shown in the Picture Above
 
 
Notes:
 
100% Brand New
Professional Installation is Highly Recommended
For LS V8 Engine Swaps only
Installation Instruction is NOT Included