This aluminium oil sump is designed for Austin Healey 100 BN1 to BN2 four-cylinder engines where an alloy sump is required. It is precision-machined to support reliable sealing, and it requires either a modified original oil strainer or a shallower strainer made for alloy sump clearance.
Yes, this sump is listed for Austin Healey 100 BN1 to BN2.
Fitment is intended for BN1 to BN2 four-cylinder engines only. If the engine or sump arrangement has been altered from standard, confirm strainer clearance before final assembly.
Possibly, yes.
The original oil strainer must be modified to fit, or a shallower oil strainer can be used to suit the reduced depth of alloy sumps. A compatible option is the shallow strainer linked below.
Installation is a mechanical job that benefits from careful preparation of mating faces and a methodical tightening sequence. Check oil strainer clearance before final fitment, and confirm the gasket seats correctly across all machined faces. A new sump gasket is recommended during installation.
Related parts: Oil Sump Gasket (BN1-BN2) and Shallow Oil Strainer for Alloy Sump (BN1-BN2).
This page covers the aluminium oil sump specified for Healey 100 BN1 to BN2. The key practical difference versus a standard depth arrangement is oil strainer clearance: this sump requires either modification of the original strainer or fitting a shallow strainer made for alloy sump applications. Choosing the correct strainer approach up front helps avoid rework after the sump is offered up.
Yes. This aluminium oil sump is for Austin Healey 100 BN1–BN2 four-cylinder engines.
If the engine build has been altered from standard, confirm oil strainer clearance before final tightening.
Oil strainer clearance must be addressed with this sump.
Either modify the original oil strainer to fit, or use the shallow oil strainer made for alloy sump clearance: ENG463AS Shallow Oil Strainer.
Yes, fitting a new gasket is the sensible approach during installation.
The correct gasket for BN1–BN2 is ENG468 Oil Sump Gasket. This avoids re-using a compressed gasket and helps support a clean seal across the machined faces.
The required fitting fixings are included, including the sump drain plug.
The sealing faces are precision-machined to support accurate gasket contact.
A clean result still depends on installation: gasket condition, mating face preparation, and even tightening across the joint.
