✅ Engine Compatibility
Designed for:
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D16Y8 (96–00 Civic EX)
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D16Z6 (92–95 Civic Si / EX)
Commonly found in:
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Honda Civic
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Honda Del Sol
⚠ Confirm valve guide condition and seat compatibility before install.
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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Intake valve
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30mm head diameter
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Standard size replacement
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Designed for 4-cylinder SOHC VTEC intake side
Perfect for stock rebuilds or mild cam upgrades.
Brian Crower premium valves guides are made from manganese silicon aluminum bronze alloy and CNC machined to exacting tolerances
🏁 When to Replace Intake Valves
✔ Burnt or pitted valve face
✔ High-mileage rebuild
✔ After detonation
✔ Valve job during head refresh
✔ Mild performance cam install
Worn intake valves cause:
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Compression loss
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Rough idle
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Poor throttle response
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Power drop at high RPM
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
⚙ Ideal Build Scenarios
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OEM-spec refresh
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Stage 1 / Stage 2 cam builds
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NA D-series setups
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Mild turbo builds
If you’re increasing lift or rev limit, inspect springs and retainers while you’re in there.
🔩 BC3070 D16 Intake Valve Installation Notes
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Inspect and machine valve seats as needed
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Replace valve stem seals
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Verify valve guide clearance
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Check piston-to-valve clearance on cam upgrades
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Perform proper valve lash adjustment
Valvetrain precision > hoping it works.
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