Spark Plug Indexing Washers
$22.49 Package of 30
B&B’s copper spark plug indexing washers allow engine builders to index a plug for the giving cylinder. This provides a performance improvement by posteniiong the spark at the most desirable location for proper flame travel.
These washers come in 3 thicknesses for both tapered seat plugs, .010″, .021″ & .032″.
The Standard Flat Seat Plugs Washers are available in .043″ .054″ & .064″ versions.