1977-97 Ford, Mercury; 302/351W 5.0/5.8 SBF; Thermactor Head Insert Plug; 5/8 in.-11
Thermactor plugs are used to plug off air passages found in small block Ford cylinder heads and are also used to reduce the thread size in the head when using the factory accessory drive brackets on the front of the engine....
1977-97 Ford, Mercury; 302/351W 5.0/5.8 SBF; Thermactor Head Insert Plug; 5/8 in.-11
MSRP $10.99 ea
Classic $9.99 ea
Classic $9.99 ea