Out of stock
SKU: SCH1132V18
MPN: 1132V18
The Schoenfeld Header SBC Modified Long Tube 1-3/4in-1-7/8 (Part No. 1132V18) is a pair of high-performance headers engineered for small block Chevy engines seeking maximum exhaust scavenging and horsepower gains. These long-tube headers feature a primary tube diameter progression from 1.75 to 1.875 inches, designed to optimize exhaust gas velocity across the engine's RPM band while the 3.5-inch collector consolidates flow efficiently into the exhaust system. Available in black paint with 18-degree head offset geometry, this header pair delivers measurable performance improvements for both street and performance applications.
The stepped primary tube design accounts for displacement variations across individual cylinders, ensuring consistent scavenging characteristics and reducing backpressure. The 1-3/4 to 1-7/8 inch progression allows smaller cylinders to flow efficiently at lower RPM while larger displacement runners prevent flow restriction at high speeds. Construction uses steel tubing with black powder coat finish for corrosion resistance under underhood temperatures. Each set includes gaskets and hardware required for direct installation, eliminating the need to source fasteners separately. The 18-degree head angle accommodates typical small block Chevy configurations where firewall clearance and engine bay layout considerations require offset collector positioning.
These Schoenfeld headers suit small block Chevy engines in street performance builds, restorations, and racing applications where extracting maximum power from modest displacement is critical. The long-tube design excels in vehicles with space beneath the floorpan for routing, making them ideal for street rods, classic muscle car restorations, and dedicated track cars. Installation requires basic mechanical knowledge and standard hand tools; confirming fitment with your specific engine block, chassis, and exhaust system configuration is essential before purchase due to the collector offset and overall dimensions.
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