ALLSTAR PERFORMANCE Spark Plug Index Shims 14mm Small O.D. ALL96506

ALLSTAR PERFORMANCE Spark Plug Washer - Small OD - Indexing - 14 mm Flat Seat - 60 and 90 Degree Shims - ALL-PRO Heads - Set of 24.
SHIMS ARE DESIGNED FOR FLAT SEAT 14MM SPARK PLUGS AND HAVE A .720 O.D. FOR CLOSE TOLERANCE SPARK PLUG POCKETS SUCH AS THE ALL-PRO CYLINDER HEADS.