Gasket - Cylinder Head - High Quality UK Made | BN4-BJ8

UK-made cylinder head gasket for Austin Healey BN4-BJ8 engines

This high-quality cylinder head gasket fits Austin Healey six-cylinder Big Healey models from BN4 through BJ8. Manufactured in the UK to original specifications from original tooling, it is intended for standard six-cylinder engine rebuild, repair and cylinder head replacement work.

The gasket is supplied individually, making it suitable when only the head gasket requires replacement rather than a complete upper-engine gasket set.

Why owners choose this gasket

• Manufactured in the UK to original specifications from original tooling.
• Suitable for Austin Healey BN4, BN6, BN7, BT7, BJ7 and BJ8 six-cylinder engines.
• Supplied as a single cylinder head gasket.
• Useful when the remaining top-end gaskets are already serviceable or being sourced separately.
• Suitable for standard road-going six-cylinder engine applications.
• Not the MLS multi-layer steel competition gasket version.

Will this fit my Austin Healey?

Yes, this gasket fits Austin Healey six-cylinder Big Healey models from BN4 through BJ8.

• Austin Healey BN4
• Austin Healey BN6
• Austin Healey BN7
• Austin Healey BT7
• Austin Healey BJ7
• Austin Healey BJ8

Not suitable for BN1 or BN2 four-cylinder models.

For a complete upper-engine gasket set, see the Head Gasket Set - High Quality UK Made Head Gasket.

For competition or high-performance applications using a multi-layer steel construction, see the MLS Competition Cylinder Head Gasket.

What is included?

• 1 x UK-made cylinder head gasket

Technical details

• Application: Austin Healey six-cylinder engines
• Fitment range: BN4-BJ8
• Manufactured in the UK
• Produced from original tooling
• Original-style construction for standard engine applications

Installation notes

Cylinder head and block mating surfaces should be clean, flat and free from corrosion or previous gasket material before installation.

• Use the correct workshop manual torque sequence and specifications.
• Check cylinder head studs, nuts and threaded holes before reassembly.
• A calibrated torque wrench is required.
• Coolant and engine oil should be renewed where necessary after reassembly.

Choosing the correct gasket for your engine build

This gasket is intended for standard BN4-BJ8 six-cylinder engine applications using the original-style construction. Owners rebuilding modified or competition engines may prefer the separate MLS multi-layer steel gasket depending on engine specification and compression setup.