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Howards Cams Extreme Billet Main Caps; Chevy 2-Bolt to 4-Bolt 350 Main Journal H350S
$318.39

Howards Cams Extreme Billet Main Caps: Chevy 2-Bolt to 4-Bolt 350 Main Journal H350S

Upgrade your Chevy engine with the Howards Cams Extreme Billet Main Caps, specifically designed for converting 2-bolt to 4-bolt configurations on the 350 Main Journal. These caps are a game changer for anyone looking to boost their engine's durability and performance.

Precision Engineering for Maximum Strength

Crafted from high-quality low carbon 1020 billet material, these main caps are precision CNC machined to ensure a perfect fit and long-lasting performance. Whether you're looking for a stock replacement or the added strength of splayed outer bolt holes, Howards Cams has you covered. The splayed caps come with 10-degree angled outer holes, which help reinforce and tie the block together, providing enhanced stability under stress.

Key Features

  • Precision CNC machined from low carbon 1020 billet material
  • Available as stock replacement or with splayed outer bolt holes
  • Includes center 3 caps; front and rear caps sold separately
  • Drill bushings included for caps that require them
  • Side notches for easy removal
  • Proudly manufactured in the U.S.A.
  • Line boring required after installation

Benefits of Using Howards Cams H350S

By upgrading to the Howards Cams Extreme Billet Main Caps, you’ll experience improved bottom end stress management and reduced flex. This is crucial for high-performance builds where every bit of power counts. The design not only enhances the structural integrity of your engine but also provides peace of mind knowing you have a reliable foundation for your powertrain.

Popular Fitments for H350S

The Howards Cams H350S is compatible with various Chevy models, including:

  • Chevrolet Camaro (1970-1981)
  • Chevrolet Corvette (1968-1982)
  • Chevrolet Chevelle (1970-1972)
  • Chevrolet Silverado (1973-1987)

Customer Reviews

Customers have praised the Howards Cams Extreme Billet Main Caps for their exceptional quality and ease of installation. Here’s what some users are saying:

  • "These caps fit perfectly and provided the extra strength I needed for my build!"
  • "Noticed a significant improvement in engine stability after installation. Highly recommend!"
  • "Great product! The machining is top-notch, and they look fantastic in my engine."

Specifications

  • Material: Low Carbon 1020 Billet
  • Type: 2-Bolt to 4-Bolt Conversion
  • Included: Center 3 Caps, optional front and rear caps
  • Manufactured: 100% in the U.S.A.

Upgrade your Chevy with Howards Cams Extreme Billet Main Caps and experience the difference in performance and reliability. Your engine deserves the best!

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WARNING: Cancer and Reproductive Harm
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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 $250.47
Shipping Weight: 7.80
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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Howards Cams $212.26 $318.39 $303.23 ? ? 2025-06-27 06:05:00


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