Features:

  • stainless steel exhaust manifold studs and stainless steel serrated face flange nuts.
  • stainless steel exhaust manifold stud kit will replace the factory hardware that rust and break on Ford 4.6liter and 5.4liter engines
  • Reference Numbers: N811313S431, W701706-S2
  • Ford 4.6 & 5.4 Liter V8 stainless exhaust manifold stud kit
  • Premium grade A2-70 stainless steel
Well worth the cost

Installed on a 2000 Ford Ranger 4.0L V-6 These fit perfectly on my Ranger engine during a head gasket replacement. I've included a photo to show the length of these manifold studs in relation to the original manifold stud that I didn't replace (frozen to the cylinder head, and still had good threads). As you can see, they are the same length as the factory stud, they just use an internal allen bit instead of an external hex bit. I installed them with high-temp anti-seize compound, and used the included nuts on all studs (even the factory one). Installation was easy and everything went well. None broke, none stripped the threads, and the manifold is secure and not leaking. I definitely recommend this stud kit!

No issues

Don't know where these were made, but they are stainless steel. Some have mention that it being short, which is true in a sense. The thread length is the same for both. The difference is the factory uses a hex head for installation, where this kit uses allen hex head. This actually makes the exhaust manifold installation a little bit easier. It's a tight fit. So far i've had these for about a month and have zero issues.

2007 F250 6.0L

This was a great replacement of the OEM studs for exhaust manifold. It really was easy to install and even easier to watch come off when needed. Hasn't rusted, torque right and it will come off correctly. Must buy if doing a rebuild or have the cab off. Stop snapping studs! ha. 6.ohshit!

Great fit fast delivery

Fit perfectly. Hopefully it will not rust into the engine block. Which is the reason i bought stainless steel to make it easy for the next guy.

Very good quality

Boy o boy this are nice to have, installed this on my 5.4 3V FORD engine, this is a great product!

Inexpensive and good quality easy install

Studs worked perfectly easy to install had no issues so far been about 6k since new install of manifolds

Perfect fit

Exactly as advertised. A little shorter than original equipment nonetheless perfect fit

Little short

Decent product. They are shorter than stock so beware

Good quality Stainless Steel

Great product and added some sine to my headers. I dropped a nut on installation and was luck a magnet barely worked to pick it up out of the frame.

Wow, durable

If these hold up like I think they will, they are a damn fine set.

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