Hedman Hedders 68390 Painted Steel Exhaust Headers for Chevy Small Block

The Hedman Hedders 68390 painted steel exhaust headers are engineered specifically for engine swap applications in 1967-1981 Chevrolet Camaro and 1964-1977 Chevelle, Malibu, and El Camino models with Small Block Chevy 283-400 cubic inch V8 engines. These headers replace restrictive factory cast iron manifolds with individual mandrel-bent primary tubes that optimize exhaust flow and scavenging.

Performance Benefits:

• Individual primary pipes for each cylinder create scavenging effect that pulls exhaust gases out more efficiently
• Increased exhaust velocity helps draw fresh air-fuel mixture into cylinders for improved combustion
• Reduces backpressure and engine operating temperatures compared to stock manifolds
• Delivers measurable gains in horsepower and torque for better passing power, towing capacity, and load hauling
• May improve fuel economy by allowing the engine to work more efficiently under load

Construction and Installation:

• Durable painted steel finish for corrosion resistance
• Designed for straightforward installation in popular engine swap configurations
• Includes complete installation instructions
• Precision-engineered fitment for Small Block Chevy V8 applications

These headers are ideal for hot rod builds, resto-mods, and engine swaps where maximizing performance from classic Chevrolet platforms is the goal. Hedman Hedders brings decades of racing-derived exhaust technology to street applications.