Out of stock
SKU: BEYDLM604-17-A
MPN: DLM604-17-A
The BEYEA Custom Headers SBC DLM Header features 1-5/8 x 1-3/4 inch primary tubes flowing into a 2-3/4 inch collector, purpose-built for small block Chevy dirt late model racing applications. This header kit delivers optimized exhaust scavenging for high-RPM dirt track competition, where exhaust gas velocity and primary tube sizing directly impact horsepower delivery and throttle response. Manufactured from steel with factory black paint, the system arrives complete with gaskets included—ready to bolt onto your SBC racing engine.
The 1-5/8 to 1-3/4 inch stepped primary design matches the optimal scavenging frequency for small block displacement and typical dirt late model RPM ranges, improving low- to mid-range power where track racing demands quick spool and consistent acceleration. The 2-3/4 inch collector consolidates exhaust pulses efficiently, reducing backpressure while maintaining scavenging velocity—a critical balance for naturally aspirated SBC racing engines. Steel construction with black finish provides durability under high-temperature exhaust exposure and repeated thermal cycling common in competitive dirt racing environments. Included gasket set ensures a proper seal at all mounting and collector interfaces.
This header is engineered for dirt late model competitors running small block Chevy platforms who need measurable improvement in mid-range torque and top-end RPM capability. Dirt late model racing regulations often restrict engine modifications, making header selection and primary sizing one of the few legitimate power-building options available. The stepped tube design and collector configuration reflect Beyea Custom Headers' experience building headers specifically for dirt oval racing, where driveability and consistency matter as much as peak horsepower.
Dirt late model headers demand precision tube sizing matched to engine displacement and RPM range. A header that flows too freely can lose scavenging efficiency; one that's too restrictive kills top-end power. This BEYEA Custom Headers system applies proven race engineering to that balance, making it a direct bolt-in solution for competitors upgrading from stock manifolds or undersized aftermarket headers.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
