✅ Engine Compatibility
Designed for use with:
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EJ205
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EJ255
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EJ257
Common applications include:
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Subaru WRX
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Subaru WRX STI
⚠ Verify cylinder head casting and valve diameter before ordering.
Brian Crower premium valves guides are made from manganese silicon aluminum bronze alloy and CNC machined to exacting tolerances. Brian Crower guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and RPM’s. The perfect replacement to worn or damaged guides and 100% compatible with Brian Crower lineup of stainless steel valves.
🔧 Specifications
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Quantity: 8 valves (complete intake side for 4-cylinder engine)
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Head Diameter: 36mm
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Tip Size: Standard
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Size: Standard (no oversize machining required)
Perfect for stock-bore head rebuilds.
🛠 When to Use These BC3600-S EJ257 Intake Valves
✔ OEM-spec rebuild
✔ Burnt valve replacement
✔ High-mileage refresh
✔ Moderate boost street builds
✔ Valve job with resurfaced heads
If your engine saw detonation or high EGTs, intake valves are often the first victims.
Brian Crower premium valves guides are made from manganese silicon aluminum bronze alloy and CNC machined to exacting tolerances
Brian Crower guides are resistant to Cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and RPM’s
The perfect replacement to worn or damaged guides and 100% compatible with Brian Crower lineup of Stainless Steel valves
🔩 Why Upgrade During a Rebuild?
Worn or damaged valves can cause:
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Compression loss
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Misfires
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Poor idle
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Boost leaks through valve seat
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Oil consumption
Fresh valves restore sealing and combustion efficiency.
🏁 Ideal Build Scenario
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Stock or Stage 1 turbo builds
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Head gasket service
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Valve job + new seals
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EJ engine refresh
If you’re going big boost or high RPM, consider upgraded valve springs and retainers to match.
BC3600-S EJ257 Intake Valves Installation Notes
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Always perform proper valve seat inspection
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Replace valve stem seals
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Verify installed height
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Check valve guide clearance
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Follow torque and head assembly specs
Subaru heads reward precision. Guesswork costs engines.


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