Proform Blog

PROFORM WEDGE-LOCKING HEADER BOLTSFriday, September 1, 2023

     

Profoundly simple yet amazingly effective! Wedge-Locking Header Bolts have become the new standard in automotive bolt-fastening technology. Now introducing Nickel-Plated Wedge-Locking Header Bolts for vintage V8 applications. This groundbreaking product is already the definitive solution for automotive enthusiasts and professionals seeking a hassle-free and reliable method to secure their headers.

A Simple, Effective Solution

Gone are the days of relying on pins, clips, wires, or messy adhesive fluids. With PROFORM's wedge-locking technology, securing headers has never been more straightforward or effective. And the best part? No more recurring expenses on replacements. These bolts are designed to be the last header bolts you'll ever need.

How It Works

Each bolt is meticulously crafted and comes pre-assembled with a pair of unique locking washers. When torqued using any standard wrench, the washer's super-hardened external teeth firmly grip the bottom of the bolt head and the top surface of the header flange. This ensures that a wedge-locking action effectively blocks any potential loosening rotation, thanks to the washer's interfacing matching cams.

What sets PROFORM's wedge-locking header bolts apart is their reliance on tension rather than friction. In fact, contact with oil only enhances the wedge effect, further securing the bolt. And when it's time for removal? It's as straightforward as loosening any other standard bolt. These bolts can be lubricated and reused, ensuring longevity and value.

Premium Quality and Versatility

Reflecting PROFORM's commitment to quality, these wedge-locking header bolts are manufactured using grade eight steel. They are available in both one-inch and three-quarter-inch under head lengths (UHL), ensuring compatibility with a wide range of Chevy, Ford, and Mopar engines. The added touch of nickel plating enhances the bolt's appearance and offers resistance against corrosion and wear.

For more information about PROFORM's Nickel-Plated Wedge-Locking Header Bolts or to see retailers where they are available, visit www.ProformParts.com/wedge-locking-bolts.

Features:

      • Grade 8 Header Bolts offer enhanced stability with their unique self-locking design.
      • Torqued to 28+ ft/lbs, external teeth grip the bolt head & flange creating a self-locking grip that will not come loose.
      • The wedge-locking mechanism relies on tension, not friction, which prevents bolt-loosening rotations.
      • This Wedge-Locking tensioning technique actually strengthens with vibrations, and is even more effective when lubricated, further securing the bolt.
      • Each bolt and nut combo includes two sets of these special locking washers, which can be reused easily untightened, lubricated, with a standard wrench.
      • PROFORM's cost-effective solution eliminates the need for pins, clips, wires, or adhesive fluids, saving both time and money.

 

NEW! Nickel Plated Part Numbers & Applications

 

Applications (12 Bolts):
Chevy V6 & Small Block V8 265-400; Buick/Olds/Pontiac V8 before ’79 ; AMC V8;
Chrysler B/RB Engines (excluding 413)

    • P/N-66827: Length: 3/4 in | Thread: 3/8 in.-16
    • P/N-66824: Length: 1 in | Thread: 3/8 in.-16

Applications (16 Bolts):
Chevy Big-Block 396-502 (excluding 348 & 409);
Ford 5.0L, SB 289-302-351W; Mopar 413

    • P/N-66823: Length: 3/4 in | Thread: 3/8 in.-16
    • P/N-66825: Length: 1 in | Thread: 3/8 in.-16

NEW! Application (16 Bolts):
Ford V8: 4.6 & 5.4 Liter; 2005 & Newer Modular

    • P/N-66826: Length: 1.181 in | Thread: 8 mm

 

If you would like more information about this topic, please contact Ryan Salata at 586.774.2500 or email at rsalata@proformparts.com

PROFORM® Parts (Specialty Auto Parts U.S.A., Inc.), engineers and manufactures innovative performance parts and job-specific, engine building tools for the Automotive Aftermarket. Our goal is to provide maximum value to Performance and Race Enthusiasts with innovation, quality, and affordability in all our products. The company has evolved, since its inception, to routinely designing and producing creative products and industry firsts. PROFORM innovations include introducing 100% new starters, alternators, and distributors, at costs in line with rebuilt/reman units, the two-piece timing chain cover, HEI distributor tune-up kits and direct-replacement aluminum carburetor main bodies. We also DESIGN AND manufacture cutting edge, patented, engine dress-up parts, such as the Slant-Edge Valve Cover, Air Cleaner and Breather Cap for Chevrolet® Performance, and MOPAR® as Officially Licensed Product. To see the full extent of PROFORM’s line, please peruse through the 2023 PROFORM Digital Catalog.

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