SXX-EVO program fundamentals
Complete cylinder head services.

Developing a turn key cylinder head solution has been a priority in order to achieve a balance between cost, reliability and downtime.

Part of the cost is labor time and downtime: time is money!

As part of the SXX-EVO Programs, we provide inspected, cleaned, machined and assembled heads.

Enjoy,
- Matt

The intention is to perform the installation within the allocated time for a head gasket replacement per the BMW Workshop Guide (TIS).

Matt
Complete machining.
The cylinder heads are resurfaced for optimal sealing of the combustion chambers.

Valvetrain work.

Valve seat machining

The valves and their seats are machined to 3 or 5 angles depending on your application to ensure the correct flow and seal.

Valve guides.

New Colsibro valve guides are machined and pressed to specific tolerances to ensure the correct valve alignment and limiting oil consumption.

New valve springs, retainers, seals and more.

All cylinder heads are fitted with uprated springs, new retainers, new seals and other components tailored around your planned used.

Terms & Conditions
Core exchange.

We use our own cores to limit downtime. We refund the core charge once your heads are returned and inspected. You don't have to send them back.

The core charges will vary per engines and availability.

Frequently Asked Questions

No.

For the S65/S85, we re-use the original hydraulic cam followers. Solid lifters may be used for specific applications.

For the S54, brand new Diamond Like Carbon coated rocker arms are used.

We do not port the S65/85 heads . For the S54, we can.

I do not.

Yes, the Sxx-EVO programs are developed around derestricted intake and exhaust systems to maximize air flow, along with drivetrain upgrades to maximize response.

Yes, we offer core head services and complete installation. Please get in touch to discuss.

While you're in there.

During the SXX-EVO installation, some parts can be pre-emptively replaced as a while-you're-in-there. Please reach out for recommendations.

Learn more about the specifics of each engine's program.

Bespoke valve covers.
Add a discerning touch to your Sxx-EVO engine.

Got questions? Reach out.

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