PRODUCT DESCRIPTION
.
Spark Plug Thread Size:
14mm
Quantity:
Sold individually.
If you perform engine work, Allstar Performance spark plug indexing tools are extremely helpful in getting the job done right! It's no surprise that high-compression engines run better when the plugs have been indexed. These handy devices fit 14mm spark plugs, positioning the ground strap properly for the best piston dome clearance; they'll work fine with either flat gasket or tapered seats. In tandem, the index tool unshrouds the electrode for a more even burn and possible gains of 5 to 15 hp. Instructions are included for easy operation.
