SBC D-Port Block Hugger Headers

The Sanderson SBC D-Port Block Hugger Headers are purpose-built exhaust manifolds designed for small-block Chevrolet engines that prioritize maximum performance and underhood clearance. These headers are ideal for engine builders, street rod enthusiasts, and performance mechanics who work with tight engine bay configurations where traditional long-tube headers may not fit.

The block hugger design routes exhaust runners close to the cylinder block, making them compatible with vehicles that have power steering, air conditioning, or other engine-mounted accessories. Constructed with a D-port configuration, these headers optimize exhaust scavenging by matching the ports to small-block cylinder head geometry, which reduces turbulence and enhances gas flow dynamics at the manifold entrance.

These headers are best suited for small-block Chevrolet applications, including 265, 283, 302, 327, 350, and 400 ci engines, whether naturally aspirated or forced-induction. Installers appreciate the reduced vibration isolation requirements compared to long-tube designs and the ability to maintain critical clearances around oil pans, water pumps, and frame components.