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4G63 Valve Spring & Retainer Kits
Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. |
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Kit # |
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Spring # |
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Retainer # |
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Seat # |
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Description |
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Buy Kit |
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Status |
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| BC0100 |
BC1100 |
BC2100 |
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Single spring, titanium retainer |
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In-Stock |
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| BC0120 |
BC1120 |
BC2120 |
BC2910 |
Dual spring, titanium retainer, spring seat and valve seals |
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In-Stock |
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Spring Pressure: BC1100 Seat: 1.550" @ 84 lbs / Open: 1.000" @ 235 lbs / Coil Bind: 0.935" (no machine work required)
Spring Pressure: BC1120 Seat: 1.550" @ 92 lbs / Open: 1.100" @ 235 lbs / Coil Bind: 0.970" (no machine work required) |
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4G63 Stainless Steel Valves
BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finish under the head. |
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Part # |
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Description |
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Buy Now |
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Status |
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| BC3100 |
34.0mm Intake (standard head diameter) |
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In-Stock |
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| BC3101 |
30.5mm Exhaust (standard head diameter) |
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In-Stock |
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| BC3104 |
35.0mm Intake (+1mm head diameter) |
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In-Stock |
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| BC3105 |
31.5mm Exhaust (+1mm head diameter) |
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In-Stock |
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4G63 VALVE GUIDES
BC premium valves guides are made from Manganese Silicon Aluminum Bronze alloy and CNC machined to exacting tolerances. BC 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 BC's lineup of stainless steel valves. |
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Part # |
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Description |
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Buy Now |
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Status |
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| BC3910 |
6.6mm INTAKE (Mitsubishi 4G63/Evo) |
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In-Stock |
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| BC3911 |
6.6mm EXHAUST (Mitsubishi 4G63/Evo) |
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In-Stock |
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In-Stock |
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619.749.9018 ph
619.749.9128 fx
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Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved. |
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HYUNDAI G4KF
