- Product By DNA Motoring | SKU: HDS-MOPARBB-V8
- Aftermarket Exhaust Header For Dodge/ Chrysler/ Plymouth Big Block 5.2L - 5.7L Mopar 383/ 400/ 413/ 426/ 440 V8 (1959-78)
- 2-Piece 4-1 Racing design (8-2-1)
- O2 sensor bung insertion; Metal gasket included
- Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends
- Maximizing Smoothest High Exhaust Air Flow Rate
- Design to Reduce Air Flow Restriction To Achieve Higher Horsepower and Throttle Respond
- TIG Welded CNC Machine Flange for Resistance against Pressure and Corrosion
- Provide Aggressive Deeper Exhaust Note
- Direct Bolt-On Installation, Requires No Modification.
- Professional Installation is Highly Recommended (No Instruction Included).
The exhaust manifolds found in the 1959-1978 Big Block Chrysler Hemi engines were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 Block Hugger off-road headers are designed to allow the exhaust gasses to flow more freely from each cylinder bank and combine in a more efficient manner. Block Hugger style headers are meant to be used where space for long tube headers isn?t available due to steering and cross member clearance issues. Tubing has been optimized for the 383, 400, 413, 426 and 440 Hemi engines. 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.