68-87 BBC Truck Headers

The 68-87 BBC Truck Headers by Hedman are purpose-built performance exhaust manifolds engineered for big block Chevy powerplants in full-size trucks and SUVs spanning 1967–1991 model years. These headers represent a fundamental upgrade for mechanics and enthusiasts seeking to unlock additional horsepower and torque by replacing restrictive factory cast-iron manifolds with free-flowing primary tubes. Whether you're restoring a classic square-body Chevrolet truck or modernizing a vintage SUV, street-ready headers eliminate backpressure inefficiencies and dramatically improve engine breathing across the RPM band.

Built from mandrel-bent steel tubing with black powder-coat finish, the 68-87 BBC Truck Headers feature 2-inch primary tubes that merge into a 3-inch collector, optimizing scavenging for big block displacement and torque characteristics. The stepped primary design accommodates tight engine bay clearances common to truck applications while maintaining smooth gas flow transitions. Each pair includes gaskets and mounting hardware, eliminating the need for separate purchases—a thoughtful detail that speeds installation. The black paint protects against corrosion while maintaining a clean underhood aesthetic, and the robust construction withstands high exhaust temperatures and vibration typical of full-size truck duty.

Mechanics and truck owners running 396, 427, or 454 big block engines will see measurable gains in throttle response and peak power once these headers replace factory manifolds. Direct bolt-on fitment to GM full-size trucks and SUVs minimizes fabrication time, though proper gasket sealing and torque sequences remain critical to prevent leaks. Installation pairs well with modern ignition systems, fuel management upgrades, and cam timing adjustments for maximum effect. At 38.1 lbs for the pair and compact enough to fit standard truck underbodies, the 68-87 BBC Truck Headers deliver serious flow improvements without requiring extensive chassis modifications.