Two different type of retainers are supplied for your preference
1 1/4" (1.25")Length
Made in USA
For 4.6L or 5.4L based applications
Limited Lifetime Warranty
What's in the Box
(16) Spring Clips
8mm-1.25 x 22mm Fits 4.6L/5.4L modular V-8 engines
These kits fit most V-8 and many other engines. Includes (16) bolts and locking hardware.
100% reliable, zero failures in more than 6,000,000 applications. Header fasteners absolutely, positively will not back out. Eliminates need to monitor and tighten bolts regularly
Grade 8 aircraft quality bolts made in U.S.A. Duplex nickel plated
Manufacturer's Lifetime Warranty
Do these bolts fit the 2009 4.6 3 valve? Can these bolts be torqued? If so, what would the torque be? Asked by michael j. from benton | Comment00
Best Answer: These will work just fine on your 09. Stage 8 recommends 26-32lbs of torque, however, it is very difficult to gain access to all of them with a torque wrench, so I would just make sure they are tightened enough to compress the gasket appropriately, and install the clips to keep them from backing off and you should be good to go. Answered by Karson S.from Hewitt | Comment00
I got these locking fasteners after having repeated issues with my header bolts loosening.
The hex in the head is useful for about three bolts out of the 16, but that's BBK and Ford's problem.
The reason I'm disappointed with the kit is simple. There are two sizes of the locking cam, one fits between the bolt and tube, and the other does not. The one that fits? they gave me 8 of them. The one that doesn't? I have 16 of those. So, here I am modifying 8 of the larger ones to fit.
On top of that, the C-Clips that hold the lobe-shaped retainer on can be bent if installed improperly. I've installed one wrong, and dropped one to who knows where. The issue with this? I was only given 16 C-Clips, which means I'm headed to Fastenal on my work break to see if they have any.
If this kit was $30, I would forgive this all.
For $65, you can send me a few extra pieces of steel and a few extra C-Clips.
Aside from these issues, the locking mechanism seems like it will stay for years without needing to be retightened, which is the only reason it gets as high of marks as it did.
Despite all of that, If a friend were doing this job, I'd have them do it with these the first time to save the headache of taking the car apart as many times as I have.
Yes, I would recommend this item to a friend!
Was this review helpful to you?
Zachary L. on
I bought these to go with some headers that I'm about to buy. So I haven't installed them yet but I bought a set a couple years ago and they worked great! We all know it's really tight inside the DOHC 4.6 engine bay, that's why I loved how these have a 6 point bolt head and also accepts an Allen wrench!
50resto - Dedicated To The Preservation Of The Fox Body Mustang
50resto is your trusted source for 1979-93 Mustang Foxbody restoration products. Buy 50resto products from Latemodel Restoration Supply and receive the best value, quality and industry-leading customer service. Whether you need Fox Body Mustang weatherstrip, headlights, taillights, seals, body panels, hardware, door handles, trim parts, carpeting or upholstery, 50resto is the brand you should demand.
SVE and 50resto Warranty
One Year Hassle Free Replacement
SVE and 50resto products are warranted to be free from defects in materials or workmanship for one year from date of purchase. What does this warranty cover? YOU! That’s right, whether you ordered a SVE brand Mach I grille delete or a 50resto brand light kit, if your product fails within a year of your purchase we got your back! Some conditions will apply.
E-commerce in today's world is all about the customer experience, period. Take it from a guy who works in this space for a very large retailer currently on the IT Supply Chain side. Every time I order from LateModel I'm always impress at how quickly they process orders. For those that work in this field in always challenging as volumes shift. Thanks for making my project a reality......