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Howards Cams Steel Billet Mechanical Roller Camshaft 3400 to 7300 Chevrolet 396-502 1965-1996 - 121633-12

Howards Cams Steel Billet Mechanical Roller Camshaft 121633-12

If you're looking to boost your Chevrolet 396-502's performance, the Howards Cams Steel Billet Mechanical Roller Camshaft is a fantastic choice. Designed specifically for the Mark IV engines produced between 1965 and 1996, this camshaft is engineered to deliver impressive horsepower and torque, particularly in the upper RPM range.

Key Features

  • High-Quality Construction: Crafted from the finest race-quality cores, this camshaft undergoes rigorous Rockwell hardness testing and is Parkerized for durability.
  • Precision Manufacturing: Each camshaft is manufactured on high-precision CNC cam grinding machines, ensuring exceptional accuracy and performance.
  • Safe Packaging: Packaged in a robust, reusable case, your camshaft arrives in pristine condition, ready for installation.

Specifications

  • Camshaft Series: Big Bottle Cams - Nitrous Oxide
  • Engine Compatibility: Chevrolet 396-502 Mark IV
  • Camshaft Type: Mechanical Roller
  • Basic RPM Range: 4000 to 7000
  • Valve Lift (Intake/Exhaust): .703
  • Duration (Intake/Exhaust): 297 / 309
  • Duration at .050 (Intake/Exhaust): 265 / 277
  • Lobe Separation: 112
  • Intake Centerline: 108
  • Firing Order: 1-8-4-3-6-5-7-2
  • Country of Origin: United States

Fitment

This camshaft is perfect for high-performance builds, especially those utilizing nitrous oxide systems. However, it's essential to note that stock valve springs are not compatible. You will need to upgrade to a thrust button and ensure you have an upgraded distributor gear and fuel pump pushrod for optimal performance.

Popular Fitments

  • Chevrolet Chevelle (1965-1972)
  • Chevrolet Camaro (1967-1969)
  • Chevrolet Corvette (1965-1996)
  • Chevrolet Impala (1965-1970)

Customer Reviews

Customers rave about the Howards Cams Steel Billet Mechanical Roller Camshaft, highlighting its ability to deliver substantial power gains and a noticeable difference in engine responsiveness. Many have noted that the installation process is straightforward, especially with the right supporting components.

Whether you're racing on the track or cruising on the street, the Howards Cams 121633-12 camshaft is designed to take your Chevrolet's performance to the next level. Get ready to experience the thrill of driving with enhanced power and efficiency!

Proposition 65

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

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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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