Hedman | Silver Long 4-Tube Headers for 1967-81 Pontiac Firebird with Pontiac V8 - Firebird / Base 5.7L / 6.6L / 7.5L 1970-1979

Hedman Hedders – Exhaust Headers

Description

Hedman Hedders has been manufacturing high-performance headers in the USA since 1954. The HTC Silver long-tube headers (SKU 28156) are crafted from smooth-flowing, CNC mandrel-bent mild steel tubes, hand-welded to ensure consistency from pair to pair. Their 1-3/4 in. primary tubes deliver optimal exhaust flow for Pontiac 326-455 engines, maximizing top-end horsepower and torque. Hedman's unique ball and socket gasketless collector design allows bolt-on installation even with slight exhaust system misalignment. The polished HTC Silver Ceramic-Metallic finish resists corrosion and withstands up to 1400°F, backed by a 5-year factory warranty. Each set includes gaskets, bolts, 2-1/2 in. ball & socket reducers, and all necessary mounting hardware. Compatible with power steering, manual transmission (column and floor), and automatic floor transmission.

Specifications

• Brand: Hedman Hedders
• Reference (SKU): 28156
• Category: Long-Tube Exhaust Headers
• Compatibility: Pontiac Firebird / Trans Am, 326-455 engines (See Application Section)
• Material: Mild Steel, Standard-Duty, CNC mandrel-bent
• Primary Tube Diameter: 1-3/4 in., 16-gauge
• Finish: HTC Polished Silver Ceramic-Metallic (up to 1400°F resistance)
• Collector: Ball and Socket Style (Gasketless), 3 in.
• Contents: Headers, 2-1/2 in. ball & socket reducers, gaskets, mounting hardware
• Replacement Gasket: 27600
• Emissions: EO# D167-27 (see ARB.CA.GOV for covered vehicles)
• Condition: New
• Sold and shipped by GBP Performance

Note:

• Livraison GRATUITE / FREE Delivery