Spark Plug Indexer
Features- High-compression drag race engines require "indexing" of spark plugs to prevent contact between piston dome and ground wire of the spark plugs
- Moroso's "Indexer," designed for both flat and taper-seat 14mm spark plugs, enables selection of spark plugs that will not make such contact
- Once a given plug is selected (placed in a cylinder head and found to have the correct ground wire position), it is placed in the Moroso Plug Indexer and the position of the ground electrode marked on the black anodized surface
- Marking provides a reference for checking other plugs to be used in the same cylinder
- The hex-head design allows it to be held in a vise
| PART NO. | AVAILABLE OPTIONS |
| 71900 | Spark Plug Indexing Washers, Tapered Seat, .010", .021", .032" |
| 71910 | Spark Plug Indexing Washers, Flat Seat, .040", .050", .064" |
- Spark Plug Indexing Block Included:
- Yes
- Spark Plug Indexing Block Material:
- Billet aluminum
- Spark Plug Indexing Block Finish:
- Black anodized
- Illuminated Spark Plug Viewer Included:
- No
- Spark Plug Gapper Included:
- No
- Case Included:
- No
- Quantity:
- Sold individually.
