For 67-74 SBC V8 LS/LS1-LS6 LSX Swap Stainless Long-Tube Header Exhaust Manifold

What is For 67-74 SBC V8 LS/LS1-LS6 LSX Swap Stainless Long-Tube Header Exhaust Manifold?

The For 67-74 SBC V8 LS/LS1-LS6 LSX Swap Stainless Long-Tube Header Exhaust Manifold is a performance upgrade designed specifically for LS-based V8 engine swaps into 1967–1974 small-block Chevy (SBC) platforms. Constructed from durable stainless steel, this long-tube header set replaces restrictive factory exhaust manifolds to improve exhaust scavenging and engine breathing. Ideal for restomods and custom builds, it supports LS1, LS6, LSX, and related Gen III/IV LS engines, delivering both performance gains and corrosion resistance. Priced at $176.36, it's a cost-effective solution for enthusiasts seeking reliable power increases without sacrificing longevity.

Key features

• Stainless Steel Construction — Resists corrosion and withstands high heat for long-term durability.
• 16-Gauge Wall Piping — Balances flow efficiency with structural strength for performance use.
• 6-Bolt Exhaust Flange — Ensures secure fitment and leak-free connection to exhaust systems.
• 9mm Manifold / 8mm Collector Flange — Reinforced thickness for improved sealing and reliability.
• O2 Sensor Bung Included — Factory-style bung and metal gasket allow proper sensor installation.
• HP & Torque Gains — Promotes high-flow exhaust for estimated 10–15 hp and torque increase.
• Complete Header Set — Includes both left and right headers with mounting hardware shown.

Who is For 67-74 SBC V8 LS/LS1-LS6 LSX Swap Stainless Long-Tube Header Exhaust Manifold for?

This header set is tailored for automotive enthusiasts performing LS engine swaps into classic GM A-body or similar platforms from 1967 to 1974. It suits DIY builders with intermediate mechanical skills and access to welding or exhaust fabrication tools. Ideal for street rods, muscle car restomods, and performance daily drivers, it delivers measurable gains without requiring full custom exhaust work. Not recommended for stock replacements or non-LS swap applications.

How does For 67-74 SBC V8 LS/LS1-LS6 LSX Swap Stainless Long-Tube Header Exhaust Manifold compare?

Compared to mild cast-iron manifolds, this stainless long-tube header offers superior flow, weight savings, and thermal efficiency. It outperforms shorty headers in mid-to-high RPM power delivery, making it better suited for performance builds than factory-style replacements. While ceramic-coated headers may offer slightly better heat retention, this stainless version provides greater longevity and lower maintenance. It’s more affordable than custom TIG-welded headers but requires professional fitment for optimal results.