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4B11 EVO X - Valvetrain


BC0130

BC0130 - Mitsubishi 4B11 Evo X Spring/Titanium Retainer Kit

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1130 Single Free Length 1.693" Seat 1.375" @ 75 lbs Open 0.950" @ 175 lbs Coil Bind 0.850" Retainer BC2130 Spring Seat OEM Net Cam Lift 0.475" / 12.06mm

$ 276.71 $ 326.52


BC3130

BC3130 - Mitsubishi 4B11 Evo X Intake Valves (35mm / STD) - set/8

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

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 finis...

$ 159.79 $ 188.55


BC3131

BC3131 - Mitsubishi 4B11 Evo X Exhaust Valves (29mm / STD) - set/8

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

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 finis...

$ 159.79 $ 188.55


BC3134

BC3134 - Mitsubishi 4B11 Evo X Intake Valves (36mm / +1mm) - set/8

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

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 finis...

$ 159.79 $ 188.55


BC3135

BC3135 - Mitsubishi 4B11 Evo X Exhaust Valves (30mm / +1mm) - set/8

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

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 finis...

$ 159.79 $ 188.55


BC3914

BC3914 - Mitsubishi 4B11T (Evo X) / Hyundai G4KF Intake Valve Guides

5.5mm Intake - Manganese Silicon Aluminum Bronze

5.5mm Intake - Manganese Silicon Aluminum Bronze

$ 73.30 $ 86.49


BC3915

BC3915 - Mitsubishi 4B11T (Evo X) / Hyundai G4KF Exhaust Valve Guides

5.5mm Exhaust - Manganese Silicon Aluminum Bronze

5.5mm Exhaust - Manganese Silicon Aluminum Bronze

$ 73.30 $ 86.49