
Small-Block Chevy Head Gasket 265-400 18° & 23° Heads
- Small-Block Chevy Head Gasket
- 265-400 18° & 23° Heads
- With Steam Holes
- Bore: 4.200"
- Compressed Thickness: .027"
- Compressed Volume: 6.13cc
Cometic Gaskets 245-C5881-027 Features:
Cometic Multilayer Steel (MLS) Gaskets are designed to provide the best possible seal for naturally-aspirated, boosted, or nitrous-fed engines. These head gaskets are made from 3 to 5 layers of spring stainless steel, offering a stronger base material than standard cylinder head gaskets. Viton-coated outer layers create a superior seal not available with other steel or copper gaskets. Cometic MLS Cylinder Head Gaskets reduce bore distortion but can still endure extreme cylinder pressures. Sold individually.
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Features:
- Made from stainless spring steel
- Excellent rebound characteristics and corrosion resistance
- Viton rubber coating (.001'' thick) is bonded to outer layer of gaskets
- Designed to withstand serious cylinder pressures without machining for installation of locking wire
Installation Notes:
- Not designed for use on engines with O-rings or receiver grooves
- Always refer to the fastener manufacturer to determine accurate torque values
- A surface finish of 50 RA (roughness average) or finer is recommended for proper gasket seal
- Cometic Cylinder Head Gaskets go on dry because they're coated with a sealant (adding another sealer can hinder gasket performance)
