See all Engine products
Product thumb
Howards Cams 1.437" Single w/Damp Valve Spring Kit
$232.84

Howards Cams 1.437" Single w/Damp Valve Spring Kit (Part Number: 98433-K12)

Upgrade your engine's performance with the Howards Cams 1.437" Single w/Damp Valve Spring Kit. This innovative kit is designed to enhance your vehicle's valve control, making it a fantastic choice for various performance applications, especially in GM Gen III (LS1/2/6) engines.

Key Features

  • Inverted Conical Design: The unique shape of these valve springs provides increased harmonic resistance, ensuring greater stability during operation.
  • Less Spring Pressure: This design requires less spring pressure, allowing for improved valve control and responsiveness.
  • Performance Boost: Users have reported gains in horsepower, higher RPM capabilities, and an extended lifespan for the springs.

Benefits of the Howards Cams Valve Spring Kit

Choosing the Howards Cams 98433-K12 means you're not just getting a product; you're investing in a performance upgrade that can significantly enhance your engine's efficiency. The reduced spring pressure leads to better valve control, which translates to smoother operation and potentially better fuel efficiency. Whether you’re on the track or the street, this kit is engineered to meet the demands of high-performance driving.

Specifications

  • Part Number: 98433-K12
  • Spring Diameter: 1.437 inches
  • Type: Single with Dampening

Popular Fitments

  • Chevrolet Camaro: LS1, LS2, LS6 engines
  • Chevrolet Corvette: C5, C6 with LS1, LS2, LS6 engines
  • Chevrolet Silverado: 1500 models with LS engines
  • GMC Sierra: 1500 models with LS engines

Customer Reviews

Many customers have praised the Howards Cams 98433-K12 for its reliability and performance. Here’s what some users are saying:

  • John D.: "These springs made a noticeable difference in my Camaro's performance. I love how responsive the engine feels now!"
  • Sarah L.: "I installed these on my Corvette, and the power increase is impressive. Highly recommend!"
  • Mike R.: "Great quality and easy to install. They’ve held up well even under heavy use."

Upgrade your engine with the Howards Cams 1.437" Single w/Damp Valve Spring Kit and experience the difference in performance and reliability. Your vehicle deserves it!

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Howards Cams Banner

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.
You're seeing this because you're logged into an employee account or you're accessing the site through an internal IP address. This information is not normally visible.
Things
Sale price None
Wholesale price $183.17
Shipping Weight: 1.00
Length: ?
Width: ?
Height: ?
Product Added At Monday 13 May, 2024
Product Modified At Friday 27 June, 2025
Imported By ETLOverride
Last Edited By vendordata@vividracing.com
View In Admin
Vendors
Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
Vendor Inv Cost Retail Jobber MAP Core Updated
Howards Cams $155.23 $232.84 $221.75 ? ? 2025-06-27 06:05:00


Check out these other great products