SBC Header 602 Crate Howe 1-5/8in x 3in

The SCHOENFELD SBC Header 602 Crate Howe 1-5/8in x 3in (MPN 135HCM2) is a specialized exhaust manifold designed for small-block Chevrolet 602 crate engines, ideal for both racing and high-performance street applications. This header addresses performance limitations found in factory manifolds that can restrict exhaust flow, negatively impacting horsepower and throttle response.

Constructed from heavy-gauge steel, the Schoenfeld design optimizes flow characteristics, ensuring maximum efficiency for builders. The 1-5/8-inch primary tube diameter and 3-inch collector outlet are specifically engineered to match the SBC 602's displacement and typical RPM operating range, enhancing exhaust scavenging across the power band.

This header is particularly beneficial for 602 crate engine swaps and stock-class racing platforms, as well as street builds where headers are permitted. The design minimizes turbulence and reversion, which can hinder mid-range torque, making it a reliable choice for naturally aspirated applications running below 6,500 RPM.