Let me tell you about the 454-2003 ARP SB Ford 351W SS Hex Intake Manifold Bolt Kit. If you're diving into a build or just doing some maintenance on your 351 Windsor, this kit is a solid choice. I’ve used these bolts myself, and I can say they really stand up to the heat and pressure of the engine bay.
First off, the thread size is 5/16-18 in., which is pretty standard for these applications. It fits like a glove, so you won't be wrestling with mismatched threads. Plus, they come with washers included, which is a nice touch. No need to hunt around for those little guys when you're in the middle of a project.
Now, let’s talk about the hex head style. This means you can easily get a wrench on them, making installation and removal a breeze. I’ve had my fair share of frustrating moments with bolts that are a pain to reach, but these are straightforward. And the polished finish? It’s not just for looks; it helps resist corrosion, which is a big deal if you’re in a humid area or just want your engine looking sharp.
Made from stainless steel, these bolts are tough. They can handle the rigors of high-performance engines without flaking or breaking down. I’ve had them in my own setup for a while now, and they’ve held up perfectly. Trust me, you want reliable fasteners when you’re pushing your engine to its limits.
So, if you’re looking to replace old, rusty bolts or just want to add some bling to your intake manifold, this ARP kit is worth considering. It’s not just about looks; it’s about peace of mind knowing you’ve got quality hardware under the hood.
Other Part Numbers:
ARP Bolts #arp454-2003
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

ARP (Automotive Racing Products) was founded by Gary Holzapfel in 1968 when he noticed his drag-racing friends succumbing to bolt-induced engine failure as a result of poor-quality fasteners. He drew upon his expertise in the aerospace industry to develop a solution, which turned into a successful business nonetheless.
Since its inception, ARP has been engineering and perfecting a wide range of bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, and transmissions. Today, ARP remains the undisputed world leader in automotive fasteners. Racing aficionados everywhere know and recognize the ARP brand and can vouch for its quality.
What Makes ARP Bolts So Special?Located in Ventura, California, all ARP processes from raw wire to finished fasteners are conducted in-house, right here in the USA. The company continually improves its processes with strict quality control guidelines and is dedicated to producing products that are second to none. Simply put, ARP Bolts are better than the competition because of their quality materials and advanced processes.
ARP prides itself on using only top-quality materials that are above the usual “aerospace-grade” quality that other manufacturers settle for. For example, while 8740 Chromoly steel has four different grades, ARP only uses the top two, SDF and CHQ. These grades cost twice as much as the lower commercial and aircraft grades, but deliver “zero defect” quality that you can trust each and every time.
ARP Bolts are built to withstand serious racing, possess greater tensile strengths, and can survive higher stress levels than most aircraft fasteners. ARP is dedicated to creating fasteners that boast ultimate strength and durability to ensure they last race after race. Its product lineup ranges from quality high-performance OEM parts to exotic specialty hardware for IndyCar, NASCAR, NHRA drag racing, Formula 1, and even marine applications.
Equip Your Ride with ARP Bolts at Vivid RacingIf you are looking to change the fasteners on your car, you’ve come to the right place. No other brand beats out ARP Bolts in terms of strength, quality, and race-proven success. Vivid Racing is, therefore, proud to carry an extensive lineup of products from American Racing Products like bolts, fluids, sealants, hand tools, stud kits, piston sleeves, wheel bolts, and more! If you have any questions regarding the parts above, please call our specialized sales team at (480) 966-3040.