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Your cart is empty.Stage 8 3/4 inch Locking Header Bolt kit for Ford Small Block features locking header bolts for Ford 5.0 with 3/4 inch bolts. It includes (16 ea) 3/8-16 X 3/4 inch 6 point bolts with double hex head (includes 3/16 inch recessed allen head) and 16 each locking retainers and clips.
Walter Gross
Reviewed in the United States on March 3, 2025
Perfect fit to replace my old header bolt that always come loose. Easy to install.
Crider Family
Reviewed in the United States on January 4, 2025
I kept losing bolts on the headers as they kept backing out after driving for a bit. I could tell when they would get loose from the ticking noise coming from the engine. I bought these in hopes that would no longer happen. So far, they have worked like a charm, and I do not expect them to back out with the exception of one that was too close to the pipe to fit a locking tab over it.I did have to grind a tiny bit off of a few of them to get them to fit properly. If you torque the bolts properly, they may not line up with the locks, and you either have to back them off (losing proper torque specs) or make them work with the angle of the bolt. I preferred having the bolts torqued properly over not modifying the locking tabs. It wasn't enough to be a problem or take long. Just be aware that you may need to tinker a tiny bit to get them to fit properly.
blumach1
Reviewed in the United States on May 2, 2022
Great product!
Patricia E. Ryan
Reviewed in the United States on April 30, 2021
I use them all the time and keep spares for other applications , some header designs make the installation tough to apply due to clearance issues , but all in all a great product.
Ken
Reviewed in the United States on November 9, 2018
I've ordered header bolts in the past and they are usually labeled as length of stick out. So, I thought the stick out on these was 3/4", but they are only 3/4" long. They did not work for my application and the bolt head size was rather small.
Mike B
Reviewed in the United States on December 19, 2016
Very nice kit that will prevent your bolts from falling out. All i can recommend is to run the engine a couple times and torque as needed BEFORE you install the clips. I had to pull these apart 3 times because the gasket i used kept compressing with the heat expansion. I used the stacked metal gaskets.Now that everything is done moving these are doing their job as intended.
Joshua
Reviewed in the United States on May 28, 2015
Plain and simple, these do the job. My original header bolts kept riding back out due to vibration, I haven't had any exhaust leaks from the headers since installation.
Rob
Reviewed in the United States on April 26, 2015
Header bolts have this habit of unscrewing themselves and lock tight is not always a good solution. The Stage 8 locking bolts solved my header bolt issue. They were easy to install even when having to modify them to fit shorty headers in a tight space. Since installation, I have not had to tighten any of the header bolts on my Ford 392. I recommend them highly.
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