Allstar Performance Spark Plug Index Shims 14mm RS003C0408 Spacers are designed for 3/4"

Spacers are designed for 3/4" hardware and adjust from 1-3/4" to 2-1/2" wide

The 12 GPM Hex Drive Pump must be driven by a 3/8" female hex

Keeps drag link tethered to the chassis if it becomes disconnected

Panel meets SFI 23

Allstar Performance Spark Plug Index Shims 14mm RS003C0408 Spacers are designed for 3/4"Stackable 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,