Gasket SBC ASCS/SUPR 1-3/4in

The Gasket SBC ASCS/SUPR 1-3/4in from SCHOENFELD is a precision-engineered sealing component designed for high-performance small-block Chevrolet engines running ASCS or SUPR specification heads. This gasket serves as a critical barrier between engine block and cylinder head surfaces, preventing combustion blowby and oil leakage in demanding racing and competition environments. Built for engines where reliability under extreme pressure and heat cycles directly impacts performance—whether you're fielding a sprint car, super late model, or other sanctioned competition platform—this 1-3/4 inch gasket delivers OEM-grade sealing integrity.

SCHOENFELD gaskets are manufactured to exacting tolerances using materials engineered to withstand sustained high cylinder pressures, rapid temperature fluctuations, and the constant mechanical stress of competition duty. The 1-3/4 inch bore dimension is precisely matched to ASCS and SUPR head specifications, ensuring proper seat area and uniform clamping load distribution across the gasket face. At just 0.14 lbs, this component contributes minimal weight while maintaining the material density and composition necessary for reliable sealing at 10,000+ RPM operating conditions and elevated boost scenarios common in modern racing powerplants.

Competition engine builders and field mechanics responsible for small-block Chevrolet platforms running sanctioned ASCS or SUPR heads will recognize this gasket as a direct-fit OEM replacement or rebuild component. Proper installation requires clean, smooth head and block surfaces; torque specification to manufacturer standards; and use of appropriate sealant on the gasket surface if recommended by your engine builder or rulebook. Stock this part (MPN 01530-A) during engine assembly or as a critical spare for pit support to avoid mid-season failures that can sideline your race program.