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Howards Cams Extreme Billet Main Caps; Chevy 2-Bolt to 4-Bolt 400 Main Journal H400-1
$133.12

Howards Cams Extreme Billet Main Caps: Chevy 2-Bolt to 4-Bolt 400 Main Journal H400-1

If you're looking to boost the strength and reliability of your Chevy's engine, the Howards Cams Extreme Billet Main Caps are just what you need. Designed specifically for Chevy 2-Bolt to 4-Bolt 400 Main Journals, these caps are precision CNC machined from top-quality low carbon 1020 billet material, ensuring durability and performance.

Key Features

  • Precision Engineering: CNC machined for a perfect fit, these main caps are crafted to meet the highest standards of quality.
  • Versatile Options: Available as stock replacements with straight bolt holes or with splayed outer bolt holes for enhanced reinforcement.
  • Splayed Cap Design: The 10-degree angled outer holes on the splayed caps provide superior support, tying the block together and reducing flex.
  • Complete Set: The main cap set includes the center three caps, with front and rear caps available separately for a full upgrade.
  • Easy Installation: Featuring side notches for effortless removal, these caps come with drill bushings when needed.
  • Made in the USA: Proudly manufactured in the United States, ensuring high-quality craftsmanship.

Benefits of Using Howards Cams H400-1

When it comes to managing bottom end stress and flex, these main caps are a game-changer. By using the complete set, you can significantly enhance the structural integrity of your engine, which is crucial for high-performance applications. Line boring is required after installation to ensure a perfect fit, making them an essential upgrade for serious enthusiasts.

Specifications

  • Part Number: H400-1
  • Material: Low Carbon 1020 Billet
  • Fitment: Chevy 2-Bolt to 4-Bolt 400 Main Journals
  • Installation: Line boring required

Popular Fitments

  • Chevy 400 Small Block
  • Chevy 350 Small Block (with conversion)
  • Chevy 383 Stroker (with conversion)

Customer Reviews

Customers rave about the Howards Cams Extreme Billet Main Caps, highlighting their robust construction and ease of installation. Many have noted a noticeable improvement in engine stability and performance after upgrading to these caps. Users appreciate the attention to detail in the machining, which ensures a snug fit and reliable operation.

Upgrade your Chevy engine with the Howards Cams Extreme Billet Main Caps H400-1 and experience the difference in performance and reliability!

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Who is Howards Cams?

Howards Cams is an aftermarket company that Howards Johansen founded in 1945. It started as Howards Power & Racing Equipment and specialized in manufacturing high-performance racing cams for the automotive market. Even after turning the business over their oldest son, the company remained one of the best cam manufacturers in the industry.

Maximizing Their Racing Experience

The company has always used it is on-track experience to create powerful cam profile designs. It is why they have become one of the favorite brands of many top fuel dragster racers and drivers from other racing disciplines such as road racing, mudd bogging, marine racing, and circle track racing.

Advanced Manufacturing Technique

Howards Cams uses the most advanced computer design software to create the most competitive product out there. They offer a wide range of performance parts from camshafts, connecting rods, crankshafts, billet main caps, and forged pistons. All of these are made in the USA to ensure consistent quality.

Purchase Howards Cams Products At Vivid Racing

If you are in the market for high-performance parts for your engine, then look no further as Howard Cams is the brand for you. They have all the parts you need to create a fast machine and is trusted by many racers and enthusiast worldwide. If being on the top podium is your dream, then upgrade your engine with Howard Cams parts. 

To know more about the company, visit Vivid Racing and check out their list of products that fit your specific needs.

Warranty: Howards Cams Hydraulic/Mechanical Flat Tappet Camshafts are 100% Rockwell checked and parkerized at our manufacturing plantin Wisconsin. Howards Cams hydraulic and mechanical lifters are also 100% Rockwell checked for hardness to ensure that our customers receive the best American made components available. To give our customers a performance edge, Howards Cams will unconditionally replace to the original purchaser only, any non-usable hydraulic or mechanical flat tappet camshafts and lifters for 1/2 the amount of the original invoiced purchase price for a period of 6 months from the date of original retail purchase. Howards™ Cams does not warrant the performance of our products due to Howards™ Cams lack of control during product installation and usage. This applies to all camshafts, valve train components and all other racing components in our catalog and product line. Note: Due to oil available today, all Flat Tappet Cams (hydraulic or mechanical) must be initially ran with a quality break-in lube, such as Howards Z.P.M. Max. There is absolutely no warranty, expressed or implied or otherwise, on Howards Cams parts, labor, installation charges or other damaged parts. Howards Cams assumes no responsibility or liability whatsoever on incidental or consequential damages. There are no implied warranties of merchantability or fitness for a particular purpose. Howards Cams neither assumes nor authorizes any person to assume for it, any other obligation or liability in connection with the sale or use of our products. Howards Cams will replace or refund any part that has a manufacturers defect found before installation or alteration. Customers are responsible for blueprinting engine components before installation or startup.
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Sale price None
Wholesale price $104.72
Shipping Weight: 2.60
Length: 13
Width: 4
Height: 3
Product Added At Wednesday 10 April, 2019
Product Modified At Friday 27 June, 2025
Imported By ETLOverride
Last Edited By vendordata@vividracing.com
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Vendor Inv Cost Retail Jobber MAP Core Updated
Howards Cams $88.75 $133.12 $126.78 ? ? 2025-06-27 06:05:00


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