Header Gasket Set - SBM Ret-Port 1.800 x 1.750

The Header Gasket Set - SBM Ret-Port 1.800 x 1.750 from MAHLE ORIGINAL/CLEVITE is an essential component for builders and mechanics performing header installation or replacement on small-block modified engines. Custom headers unlock horsepower by optimizing exhaust scavenging, but a proper seal between the header flange and cylinder head is critical—any leak will kill performance gains and allow hot gases to escape prematurely. This OEM-quality gasket set ensures a dependable, long-lasting seal under the extreme heat and pressure cycling that high-rpm modified engines demand.

Engineered by MAHLE ORIGINAL/CLEVITE, a trusted name in OEM gasket manufacturing, this header gasket set features SBM (small-block modified) specifications sized for 1.800 x 1.750 inch runner ports—the standard dimensions found on many stroker and performance small-block builds. The retraced-port design accommodates headers with precision-ported cylinder heads, ensuring full contact and eliminating gaps that cause leakage. MAHLE's gasket material withstands continuous exposure to exhaust temperatures exceeding 1,200°F while maintaining clamping force across repeated heat cycles, a critical requirement that separates quality gaskets from budget alternatives that fail prematurely.

This gasket set is ideal for anyone installing aftermarket headers on small-block Chevrolet, Ford, or similar platforms during a rebuild, stroker project, or performance upgrade. Whether you're sealing up a fresh 383, 406, or other modified displacement engine, proper gasket selection prevents expensive exhaust leaks that force costly repeat disassembly. Lightweight at 0.17 lbs with compact dimensions, the Header Gasket Set - SBM Ret-Port 1.800 x 1.750 fits easily into a gasket kit alongside studs and fasteners, making it essential inventory for any serious engine builder's toolkit or shop supplies.