Designed specifically for the BMW S54 engine, this VAC Billet Timing Chain Cover is a
direct-fit upgrade for:
- 2001–2006 BMW E46 M3
- 2001–2002 BMW Z3 M (S54)
- 2006–2008 BMW Z4 M Roadster & Coupe
When building a serious S54 engine, the factory cast timing cover simply doesn’t match the
precision of a fully upgraded billet setup. The VAC Billet Timing Chain Cover replaces the
OEM cast unit with a CNC-machined billet aluminum cover that delivers improved strength,
durability, and a show-ready finish.
Manufactured in-house at VAC Motorsports, this cover maintains factory mounting hardware
for seamless installation while elevating the front of your engine with a high-shine, precision-machined appearance.
Whether you're completing a full S54 engine build or upgrading your E46 M3, Z3 M, or Z4 M,
this billet timing cover is the finishing detail that separates a stock rebuild from a
no-compromise build.
Features:
- CNC-machined billet aluminum construction
- Direct replacement for BMW S54 timing cover
- Compatible with E46 M3, Z3 M, and Z4 M
- Retains factory mounting hardware
- Stronger than OEM cast cover
- Manufactured in-house at VAC Motorsports