Ford Mustang 302 5.0 5.8 Cylinder Head Smog Thermactor Plugs SBF 351 TFS-5140026 for Sale


When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Price: $11.99

This is a kit of 4 thermactor plugs for Small Block Ford engines (302, 351W, 5.0).
These are useful when installing a pair of emissions legal heads on a non-emissions car. All OEM and aftermarket Ford smog legal heads have thermactor holes, one on each side of the head.
Each cylinder head takes 2 plugs. Check out our other items if you only need 2 plugs.
All OEM and aftermarket Small Block Ford heads have thermactor holes. These plugs block the holes for use on non-emission cars, and are internally threaded for accessory mounting. For use with GT40,GT40P, Trick Flow, World, AFR, etc.
Compare to Summit Racing/Trick Flow at almost $10.00 PER PLUG!
Some of these are silver in appearance, some are black hardcoat, all work equally well.
Our customers say:"Great product at a great price, THANK YOU!!!!!"
"Item as described. Excellent Ebay seller, recommend to friends."
"FAST Shipping, Great Part"
Thanks for looking!
I added a picture of a plug installed in a head. This is the intended use of these plugs. These plugsdo notwork as 02 sensor plugs.


Parts Search:


Follow