4.030 MLS Head Gasket .060 - SBF

The Cometic Gaskets 4.030 MLS Head Gasket .060 - SBF is a precision-engineered multi-layer steel cylinder head gasket designed specifically for small block Ford engines requiring professional-grade sealing. This gasket is essential for builders and mechanics tackling top-end rebuilds, performance modifications, or restoration work where factory gaskets have failed or been compromised. Whether you're refreshing a tired 289, 302, or 351W engine or assembling a high-revving stroker combination, a quality head gasket is non-negotiable for achieving a reliable, leak-free seal between the cylinder head and block.

The 4.030-inch bore diameter accommodates most SBF applications, while the 0.060-inch compression thickness is critical for controlling chamber volume and static compression ratio—especially important in modified engines where deck height, piston dome, or head milling has altered OEM specifications. Multi-layer steel construction provides superior strength, better thermal conductivity, and improved sealing consistency across repeated heat cycles compared to older composite designs. The MLS (multi-layer steel) construction eliminates the need for copper or graphite facing, reducing the risk of gasket failure from improper surface finish or clamping pressure variation, making it ideal for both street and racing applications.

This gasket is compatible with all small block Ford variants, including naturally aspirated and forced induction builds, as long as bore diameter and thickness match your engine's specifications. Proper installation requires clean, flat cylinder head and block mating surfaces, correctly torqued fasteners following manufacturer sequence, and accurate measurement of installed height to verify compression ratio before assembly. Cometic's reputation for precision manufacturing ensures consistent performance whether your SBF is destined for daily driving or the dyno, making this gasket a trusted choice for professional rebuilders and experienced enthusiasts alike.