Allstar Performance Spark Plug Index Shims - 14mm - Small O.D. (All Pro) RS003C0104 1970-1971 Plymouth Duster

1970-1971 Plymouth Duster

These DIRT specific Z-20 Series Shields are built to seal and prevent dirt and debris from entering your helmet through the top of the shield

Made from 3/16" flat steel

protection and features developed for Bellâ

1 in Thick

Allstar Performance Spark Plug Index Shims - 14mm - Small O.D. (All Pro) RS003C0104 1970-1971 Plymouth DusterStackable shims index spark plugs at 30 intervals up to 360, properly positioning ground strap in cylinder head for increased power and clearance between spark plug and piston. Shims are intended for use with 14mm flat seat spark plugs only. Package of 24 shims contains 12 silver 60, 12 black 90, detailed instructions, and dial chart. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find,