ALLSTAR PERFORMANCE Spark Plug Index Shims 14mm ALL96505

ALLSTAR PERFORMANCE 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.