Where did the term "China Rails" come from
China rails are the aluminum fillers used on the front and rear of intakes to seal the lifter valley. These are commonly used with W5 heads due to the raised intake ports which leaves a large gap that must be filled at the ends of the intake. Used on other applications also.
China rails are the aluminum fillers used on the front and rear of intakes to seal the lifter valley. These are commonly used with W5 heads due to the raised intake ports which leaves a large gap that must be filled at the ends of the intake. Used on other applications also.
