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SUPERTECH valve guides BMW M3 E46 Z3M Z4M S54B32
Set of 24 valve guides for the BMW S54B32, 6.0 mm stem.
- Brand: SUPERTECH
- Engine: S54B32
- Material: manganese bronze
- Dimensions: outside Ø 12.04 mm, length 48 mm
The BMW engine concerned
This kit fits the 24-valve cylinder head of the S54B32, the 3.2 litre straight-six of the BMW M3 E46 and M3 CSL, the Z3 M, and the Z4 M roadster E85 and coupé E86, with outputs from 320 to 360 hp depending on the version.
One SUPERTECH part number, GDE-BMW-S54-EI, suits inlet and exhaust alike: 6.0 mm stem, 12.04 mm outside diameter and 48 mm length. The kit combines two sets of 12, i.e. the 24 guides of a cylinder head. BMW does not sell this guide separately; its original bore measures 6.0 mm.
SUPERTECH valve guides for the BMW S54B32
Pressed into the aluminium cylinder head, the guide holds the valve on the axis of its seat, sends part of the stem's heat back to the head and carries the stem seal. As it wears, the stem gains play: the valve closes crooked, oil runs down towards the combustion chamber and blue smoke, oil consumption and falling compression appear.
SUPERTECH makes these guides in manganese bronze; the brand states that this copper-based alloy carries heat away much better than the sintered guides fitted as standard. They are generally paired with reinforced valves. A single part number serves inlet and exhaust alike, so the kit gathers all 24 guides of the cylinder head.
Valve guide technical specifications
| Part number | Brand | Material | Stem Ø | Outside Ø | Length |
|---|---|---|---|---|---|
| GDE-BMW-S54-EI-12*2 | SUPERTECH | Manganese bronze | 6.0 mm | 12.04 mm | 48 mm |
Valve guide installation
| Component | Original | Reinforced |
|---|---|---|
| Valve guide | Not sold separately | Replaced by the kit |
| Stem seal | Kit 11 34 9 064 457 | SUPERTECH VS-VBM-I (inlet), VS-VBM-E (exhaust) |
| Valves | Inlet / Exhaust |
Technical guide
Our catalogue also offers reinforced valves for this engine:
| BMW S54B32 inlet valves → |
| BMW S54B32 exhaust valves → |
Our brand
 |
Founded in California, SUPERTECH has made valves, springs, retainers and guides for competition for over thirty years. Numerical calculation, ultrasonic, X-ray and laser checks, validation with well-known engine builders: every novelty follows this route before it is offered. |
Manganese bronze
Made from copper and zinc enriched with manganese, aluminium and iron, manganese bronze pairs great mechanical strength with good wear and corrosion resistance, which is why it is used for bushes and other heavily loaded guiding components.
When valve guides must be replaced
- Blue smoke and oil used up along the stems
- Reinforced valves fitted to a tired cylinder head
- Head reworked for track, drift or rally use
- Valve train renewed in its entirety
Vehicle compatibility
| Model | Engine code | Power | Years |
|---|---|---|---|
| BMW M3 Coupé (E46) | S54B32 | 343 hp | 2000-2006 |
| BMW M3 Cabriolet (E46) | S54B32 | 343 hp | 2001-2006 |
| BMW M3 CSL (E46) | S54B32 | 360 hp | 2003 |
| BMW Z3 M Roadster et Coupé (E36) | S54B32 | 320 hp | 2000-2002 |
| BMW Z3 M Roadster et Coupé (E36) | S54B32 | 325 hp | 2001-2003 |
| BMW Z4 Roadster (E85) 3.2 | S54B32 | 320 hp | 2005-2007 |
| BMW Z4 Coupé (E86) M | S54B32 | 320 hp | 2006-2008 |
| BMW Z4 M Roadster (E85) et Coupé (E86) | S54B32 | 343 hp | 2006-2008 |
Remember the valve stem seals
New guides call for new stem seals: BMW lists the kit 11 34 9 064 457 here, SUPERTECH the seals VS-VBM-I and VS-VBM-E.
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Brand
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ReferenceGDE-BMW-S54-EI-12*2
