BC Brian Crower Valve Guides for 4G63 Evo/DSM (BC3910/BC3911) Select::Set of 8 Intake Valve Guides • Fittings and lines are

• Fittings and lines are not included

Meets and exceeds SFI 1

Not designed for street use

making it 51 pounds lighter than stock

They were able to get weight savings of 1

BC Brian Crower Valve Guides for 4G63 Evo/DSM (BC3910/BC3911) Select::Set of 8 Intake Valve Guides • Fittings and lines areValve guides are crucial components that wear over time, especially with high revving 4G63 engines. To maintain proper tolerances and ensure optimal performance, it's recommended to replace worn guides with new aftermarket ones. 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