Ford Triton Spark Plug Repair Kit by TIME-SERT
This complete, extremely high quality kit makes it possible to permanently repair previously non-repairable cylinder heads without removing them from the engine! BIG-SERT kits are an oversize thread repair system that will repair threads that were repaired by standard Time-Serts, Helicoil, Perma-Coil, any other similar coil style insert.