Light Speed Engineering's standard issue spark plugs are pictured to the left. Single ground electrode with a short body make these a durable option for most applications.
W27EMR-C: Used on standard and high compression engines.
The standard reach (1/2") spark plug adaptor is also pictured here (08-14009). This adaptor is used when converting aircraft engines using 1/2" reach aircraft spark plugs to 14mm plugs. Light Speed Engineering's spark plug adaptors are made of high strength aluminum bronze.
*These plugs and adaptors are included with ignition kit purchase for those with 1/2" reach.
I purchased these for adapting my auto plugs to my looming IO-540. these did NOT thread easily into the engine. i didnt want to screw up the threads so i took them out. i purchased the eMag versions, which only come in a set of 4.. The eMag ones fit fine.