4G63 - Valvetrain

BC0100

BC0100 - Mitsubishi 4G63/Evo VIII/Evo IX 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 BC1100 Single Free Length 1.879" Seat 1.550" @ 84 lbs Open 1.000" @ 235 lbs Coil Bind 0.935" Retainer BC2100 Spring Seat OEM Net Cam Lift 0.520" / 13.2mm

$ 299.26 $ 344,149.00

BC0120

BC0120 - Mitsubishi 4G63/Evo VIII/Evo IX Spring/Titanium Retainer/Seat/Valve Seal 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 BC1120 Dual Free Length 1.800" Seat 1.550" @ 92 lbs Open 1.100" @ 235 lbs Coil Bind 0.970" Retainer BC2120 Spring Seat BC2910 Net Cam Lift 0.520" / 13.2mm

$ 538.20 $ 618.93

BC3910

BC3910 - Mitsubishi 4G63/Evo Intake Valve Guides

6.6mm Intake - Manganese Silicon Aluminum Bronze

6.6mm Intake - Manganese Silicon Aluminum Bronze

$ 80.81 $ 92.93

BC3977

BC3977 - Mitsubishi 4G63/Evo Valve Stem Seals

These Viton seals allow a carefully defined amount of engine oil from the cylinder head into the ...

These Viton seals allow a carefully defined amount of engine oil from the cylinder head into the combustion chamber—to lubricate the rotating valve stem in the valve guide. BC valve stem seals are produced from high performance materials for increased part life and lower wear.

$ 31.50 $ 36,225.00