Description

The product is a Pioneer Automotive A-303-HP V.S.I. 303 Valve Spring Shims, which are sold separately. These valve spring shims are designed for automotive engines and are part of the valvetrain components. The manufacturer part numbers associated with this product are VSI-303, B-303-HP, and V.S.I. 303, indicating compatibility with specific engine models. The brand of these valve spring shims is Pioneer, known for producing quality automotive parts.