JEGS 555-30059 Painted Long Tube Headers for Big Block Chevy 396-454 Features: 

• Performance-tested against leaks for increased hp, improved throttle response, and fuel economy at various RPMs.
• Optimum exhaust flow to reduce back pressure and improve oxygen intake.
• Easy-to-install Big Block Chevy headers are designed to ensure your entire flange surface is flat for maximum gasket seal; full-length reducers, gaskets, and bolts/studs are included.
• Premium quality, high-strength steel long tube headers are crafted with an advanced welding process for maximum durability and rigidity and coated in matte black to match your trim.

Special Exhaust Headers Notes:

• Due to variations in engine and vehicle configurations, installation of aftermarket headers may require minor modifications
• Common adjustments include power-steering or A/C bracket relocation, dipstick tube modification, or clearance for steering shaft and clutch linkage
• Inspect for worn or collapsed motor mounts, and verify clearance for spark plugs, wires, brake lines, and transmission or fuel lines
• Always test-fit headers before painting or coating to ensure proper alignment and clearance
• Re-torque after initial heat cycles

JEGS 555-30059 Painted Long Tube Headers for Big Block Chevy 396-454 Notes:

• Must modify stock exhaust to retain catalytic converter(s).
• Applications with oxygen sensors will require the purchase of reducers with O2 fittings.
• These headers will not fit A.I.R. pump.
• Must use original factory Big Block frame stands, motor mounts, and hardware.
• Works with vehicles equipped with A/C
• Works with vehicles equipped with automatic transmissions with both column & floor shifters
• Will NOT work with vehicles equipped with a standard transmission with a column or floor shifter

FAQ

How much more HP do long tube headers add?

JEGS long tube headers, like the 30059 for big block Chevy (BBC) engines, can add significant horsepower gains, typically ranging from 10 to 25 horsepower. Actual results may vary based on other modifications and tuning.

Are long tube headers worth it?

Absolutely. Investing in JEGS long tube headers, specifically designed for 454 and big block Chevy engines, is worth it for the increased horsepower, improved exhaust flow, and enhanced overall engine performance.

What size long tube headers should I get?

For optimal performance, choose JEGS long tube headers sized specifically for your vehicle's engine, such as the 454 headers (30059). Consult the product specifications and consider your engine's displacement and intended use.

What do long tube headers do to a truck?

JEGS long tube headers, like the 30059 for big block Chevy engines, improve exhaust scavenging, increasing horsepower and torque. They enhance overall engine efficiency, providing a noticeable boost in truck performance and sound.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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