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Howards Cams Hydraulic Flat Tappet Boost Camshaft and Lifter Kit 2500 to 6400 Chevrolet Mark IV 396-502 1965-1996 - CL129421-14

Howards Cams Hydraulic Flat Tappet Boost Camshaft and Lifter Kit

If you're looking to give your Chevrolet Mark IV 396-502 a serious boost, the Howards Cams Hydraulic Flat Tappet Boost Camshaft and Lifter Kit is just what you need. Designed for engines from 1965 to 1996, this camshaft and lifter kit is engineered to enhance your vehicle's performance, making it perfect for both pro street and street/strip applications.

Why Choose Howards Cams?

Howards Cams is renowned for using only the highest-grade race quality cores. Each hydraulic and mechanical flat tappet camshaft undergoes rigorous Rockwell hardness testing and is Parkerized to ensure top-notch quality control. You can trust that your camshaft is built to withstand the demands of high-performance driving.

Precision Manufacturing

This camshaft is crafted on dedicated high-precision CNC cam grinding machines, ensuring that every piece meets strict quality standards. Plus, Howards Cams packages their products in durable, hard plastic cases, so your camshaft arrives in perfect condition, ready to install.

Specifications

  • Camshaft Series: Boost
  • Engine: Chevrolet 396-502 Mark IV
  • Camshaft Type: Hydraulic Flat Tappet
  • Basic RPM Range: 2500 to 6400
  • Valve Lift Intake: .595
  • Valve Lift Exhaust: .595
  • Duration Intake: 303
  • Duration Exhaust: 313
  • Duration at 050 Intake: 243
  • Duration at 050 Exhaust: 251
  • Lobe Separation: 114
  • Intake Centerline: 110
  • Firing Order: 1-8-4-3-6-5-7-2
  • Country Of Origin: United States

Fitment

This camshaft and lifter kit is specifically designed for:

  • Chevrolet Mark IV 396-502 (1965-1996)

Popular Fitments

  • Chevrolet Chevelle (1965-1972)
  • Chevrolet Camaro (1967-1969)
  • Chevrolet Corvette (1968-1982)

Customer Reviews

Many customers have shared their positive experiences with the Howards Cams CL129421-14. Here’s what some of them are saying:

  • "This camshaft gave my Chevelle the power it needed. The idle is rough, but that's what I wanted!"
  • "Installation was straightforward, and the performance boost was noticeable right away. Highly recommend!"
  • "Perfect for my street/strip build. It sounds amazing and pulls strong!"

Note

Images used are for marketing purposes only; the actual product may vary.

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.
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Sale price None
Wholesale price $292.75
Shipping Weight: 11.00
Length: ?
Width: ?
Height: ?
Product Added At Monday 21 August, 2023
Product Modified At Friday 27 June, 2025
Imported By ETLOverride
Last Edited By vendordata@vividracing.com
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Emissions Info
Carb Approved No
Carb Number -
Epa Status -
Prop65 -
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Howards Cams $248.09 $372.14 $354.42 ? ? 2025-06-27 06:05:00


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