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SKU: 3132-12
GSC P-D Toyota/BMW B58 / BMW S58 Manganese Bronze Intake Valve Guide w/Stopper - Set of 12
GSC Power-Division offers this set of 12 manganese bronze intake valve guides with stopper for Toyota GR Supra and BMW B58/S58 engines found in models from 2016 onward. These guides ensure reliable valve stem alignment and heat dissipation during demanding track or street use. Engine builders choose them for consistent performance in turbocharged applications.
Key Features
- Manganese Bronze Construction: Provides strong wear resistance and thermal conductivity to handle high heat and boost levels without premature failure.
- Integrated Stopper: Locks the guide in place to prevent spinning during installation and operation for secure valve train stability.
- Precision Machined Tolerances: Matches OEM dimensions for drop-in compatibility while supporting aftermarket valve sizes in performance heads.
- Complete Set of 12: Includes one guide per intake valve covering full engine rebuilds on inline-6 B58 and S58 platforms.
- High-Performance Design: Engineered for racing and modified engines to maintain tight clearances under extreme RPM and cylinder pressures.
Product Notes
- Valve guide installation requires removal of stock guides using specialized pullers.
- Inspect head for wear before installing new guides to ensure optimal seal and flow.
- Packaged in protective case to prevent damage during storage or transport.
Installation Notes
- Professional installation recommended.
- Use GSC or equivalent guide driver tool for even press-in to specified depth.
- Verify valve stem to guide clearance measures 0.0010-0.0025 inches post-install.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | Toyota | GR Supra | 3.0L B58 |
| 2016-2022 | BMW | 3 Series | 340i / M340i B58 |
| 2017-2023 | BMW | 4 Series | 440i / M440i B58 |
| 2017-2023 | BMW | 5 Series | 540i B58 |
| 2016-2022 | BMW | 2 Series | M240i B58 |
| 2018-2024 | BMW | X3 | M40i B58 |
| 2019-2024 | BMW | X4 | M40i B58 |
| 2019-2024 | BMW | Z4 | M40i B58 |
| 2020-2024 | BMW | X5 | M50i B58 |
| 2021-2024 | BMW | 3 Series | M3 G80 S58 |
| 2021-2024 | BMW | 4 Series | M4 G82/G83 S58 |
| 2022-2024 | BMW | X3 M | G01 S58 |
| 2022-2024 | BMW | X4 M | G02 S58 |
Why Choose GSC Power-Division?
- Proven in professional racing engines worldwide for reliable valvetrain performance.
- Manufactured with strict tolerances using premium materials for daily or track durability.
- Backed by decades of engineering expertise in high-boost inline-6 platforms.
Frequently Asked Questions
-
Q: Will these fit 2020+ Toyota GR Supra with B58 engine?
A: Yes these guides are direct fit for all 2020-2024 Toyota GR Supra 3.0L B58 intake valves with no modifications needed. -
Q: What makes manganese bronze better for valve guides?
A: Manganese bronze resists wear from high valve speeds and dissipates heat faster than cast iron keeping stem temperatures low. -
Q: Is there a warranty on these valve guides?
A: GSC Power-Division provides a limited lifetime warranty against manufacturing defects when installed by qualified technicians.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact protective box measuring 6 x 4 x 2 inches
- Weight: 0.4 lbs
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