4.200 MLS Head Gasket .027 SBF

The Cometic Gaskets 4.200 MLS Head Gasket .027 SBF is a precision-engineered cylinder head gasket engineered for small block Ford engines requiring exacting compression sealing. This multi-layer steel gasket delivers reliable performance in high-performance engine builds, stock restorations, and competitive applications where gasket integrity directly impacts combustion efficiency and longevity.

The .027-inch compression thickness is precisely calibrated for small block Ford architecture, ensuring proper deck height clearance and correct combustion chamber volume when paired with matching cylinder heads and block specifications. Multi-layer steel construction provides superior sealing under thermal cycling and pressure loads—critical factors in engines subject to sustained RPM operation or forced induction. The 4.200-inch bore diameter accommodates standard and stroker small block Ford platforms, including 289, 302, 347, and 363 configurations. Proper gasket thickness maintains compression ratio integrity while preventing head gasket failure from thermal stress or improper clamping force.

This gasket is specified for engine builders, restoration shops, and enthusiasts performing small block Ford head replacement, top-end rebuilds, or engine assembly. Correct gasket selection—matched to bore diameter and compression thickness—is foundational to preventing coolant leaks, oil weeping, and catastrophic combustion gas escape. Buyers should verify head gasket specifications against their exact block and cylinder head combination to ensure dimensional compatibility and proper installation torque sequence per engine builder guidelines.

Cometic Gaskets manufactures precision-grade gasket solutions for performance and OEM applications across automotive segments. MLS (multi-layer steel) gasket technology represents an industry standard for small block Ford engines where reliability and sealing consistency are non-negotiable requirements.