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Howards Cams 4.125" Bore Flat Top Pistons Chevrolet LS - 831204305-1

Howards Cams 4.125" Bore Flat Top Pistons for Chevrolet LS

When it comes to performance enhancements for your Chevrolet LS engine, the Howards Cams 4.125" Bore Flat Top Pistons are a game changer. Designed specifically for LS Gen III engines with 15-degree heads (like the LS1, LS2, LS3, LS6, and L92), these pistons are engineered to withstand the extreme demands of racing while delivering impressive power and reliability.

Key Features

  • 2618-T61 Aluminum Forgings: Crafted from high-strength 2618-T61 aluminum, these pistons are built to handle the rigors of high-performance racing.
  • Less than 1% Silicon Content: This low silicon content ensures durability and reduces brittleness, making them perfect for extreme conditions.
  • Oversized Valve Pockets: Designed to accommodate larger cam profiles and oversized valves, ensuring optimal airflow.
  • Accumulator Grooves: These grooves improve ring seal, enhancing engine efficiency.
  • Lightweight Aircraft Quality Wrist Pins: Included in the set, these wrist pins contribute to reduced overall weight without compromising strength.
  • CNC Turned Skirts: The precision machining allows for smooth operation even under severe conditions.
  • Radius Valve Reliefs: Designed to eliminate sharp edges and reduce hot spots, promoting longevity.
  • Forced Pin Oilers: Ensuring proper lubrication and cooling during operation.
  • Lock Removal Indents: Standard feature for ease of assembly and maintenance.
  • Double Spirolox: Provides secure retention of the wrist pin.

Specifications

  • Part Type: Pistons
  • Model: ProMax 2618 Forged Race Pistons
  • Application: Chevrolet LS Gen III with 15 Degree Heads (LS1/2/3/6 & L92)
  • Piston Style: Inverted Dome Top
  • Cylinder Bore: 4.125"
  • Compression Distance: 1.110"
  • Crankshaft Stroke/Rod Length: 4.125" with 6.125" Connecting Rod (441ci)
  • Deck Height (Zero Deck): 9.240"
  • Dome Volume: -26cc
  • Compression Ratio: 4.125" Stroke with 66cc Heads: 9.9; 4.125" Stroke with 70cc Heads: 9.6
  • Piston Material: Forged 2618-T61 Billet Aluminum Bar Stock
  • Wrist Pins Included: Floating
  • Wrist Pin Size: 0.927"
  • Pin Lock Included: Double Spirolox
  • Ring Grove Sizes: 1.5mm, 1.5mm, 3.0mm
  • Manufacturer: Howards Cams Racing Components
  • Manufacturer's Part Number: 831204126
  • Weight: 14.0 lbs.
  • Warranty: Race Application, No warranty expressed or implied
  • Quantity: Sold as Sets of 8

Popular Fitments

  • Chevrolet Corvette (C5, C6)
  • Chevrolet Silverado 1500 (2007-2013)
  • Chevrolet Camaro (2010-2015)
  • Chevrolet Tahoe (2007-2014)

Customer Reviews

Many customers praise the Howards Cams 4.125" Bore Flat Top Pistons for their exceptional performance and durability. Users have noted significant improvements in engine responsiveness and power output, especially in high RPM situations. The precision engineering and quality materials have made these pistons a favorite among racing enthusiasts and mechanics alike.

Upgrade your Chevrolet LS engine with the Howards Cams 4.125" Bore Flat Top Pistons and experience the difference in performance and reliability!

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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