ALLSTAR PERFORMANCE – Spark Plug Index Shims 14mm
ALL96505

Spark Plug Washer – Indexing – 14 mm Flat Seat – 60 and 90 Degree Shims – Set of 24

Shims are designed for flat seat 14mm spark plugs and have a .800 O.D. for proper seating on cylinder heads with standard spark plug pockets.