Allstar Performance Spark Plug Index Shims 14mm 1411Y Rotors measure 10

Rotors measure 10

Simpson has brought their experience and expertise to the art of parachute manufacturing

Flush mount bracket fastens to flat panels like a frame rail or firewall

Front / 2nd Row

875" to match the width of standard rod ends

Allstar Performance Spark Plug Index Shims 14mm 1411Y Rotors measure 10Stackable 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,