INDY CYLINDER HEADS 426-R4-27LK Rocker 1

( Brand: Indy Cylinder Heads ), ( Manufacturer Part Number: 426-R4-27LK ), ( Type: Rocker Arm Set ), ( Manufacturer Warranty: 1 Year ), ( Items Included: Rockers, Shafts, Springs, Shims, Clamp Kit ), ( Material: Cast Iron, Steel ), ( Country/region Of Manufacture: United States ), ( Vintage Part: No )

Review INDY CYLINDER HEADS 426 Rocker System fits HEMI LEGEND

Indy Cylinder Heads presents the 426-R4-27LK 426 Hemi Rocker Legend cylinder head, a high-performance component engineered to deliver exceptional power and efficiency for your Chrysler 426 Hemi engine. This cylinder head is part of Indy's Legend series, known for its unwavering commitment to quality, innovation, and durability.

The 426-R4-27LK head features a unique 4-bolt main deck design, which ensures superior strength and rigidity, reducing the risk of warping or distortion under extreme power loads. Each head undergoes a meticulous machining process, ensuring a precise fit and optimal combustion chamber dimensions for maximum power output.

The 426-R4-27LK head is designed with a large 2.02-inch intake valve and a heavy-duty 1.94-inch exhaust valve, both constructed from high-strength, heat-resistant material for optimal flow and durability. Indy's proprietary valve seat design ensures a perfect seal between the valve and the head, reducing the risk of leaks and improving overall engine performance.

The cylinder head comes fully CNC-machined, ensuring a perfectly flat and smooth surface for easy engine assembly and improved sealing. It also features a high-performance roller camshaft boss, which allows for the use of roller camshafts, providing smoother valve operation and improved idle quality.

The 426-R4-27LK head is designed with a dual-plane intake manifold port, which optimizes airflow and fuel delivery for maximum power output. It also features a high-performance, six-bolt steel head gasket for improved sealing and durability.

Indy's 426-R4-27LK 426 Hemi Rocker Legend cylinder head is backed by a comprehensive one-year warranty, ensuring peace of mind and protection against any manufacturing defects. This cylinder head is an excellent choice for any performance-minded Chrysler 426 Hemi engine builder seeking maximum power and efficiency.

Indy Cylinder Heads 426-R4-27LK 426 Hemi Rocker Legend heads are aftermarket cylinder heads designed for Chrysler 426 Hemi engines. These heads offer several benefits and drawbacks for performance enthusiasts and hot rodders. Here's a breakdown of the pros and cons:

1. Improved Flow: Indy Cylinder Heads are known for their high-flow designs. The 426-R4-27LK heads are no exception, offering increased flow rates over stock heads. This results in more power and torque.

2. Enhanced Durability: These heads are made from high-quality materials, including forged aluminum alloy. They are also designed to withstand higher temperatures and pressures, making them suitable for high-performance applications.

3. Customizable: Indy Cylinder Heads offer a range of options, including different port designs, valve sizes, and camshaft compatibility. This allows customers to tailor the heads to their specific engine and performance goals.

1. Cost: Aftermarket cylinder heads can be expensive. The Indy Cylinder Heads 426-R4-27LK heads are no exception. The cost may be a barrier for some performance enthusiasts and hot rodders.

2. Installation: Installing aftermarket cylinder heads can be a complex and time-consuming process. It requires specialized tools and knowledge. Additionally, improper installation can lead to engine damage.

3. Compatibility: While Indy Cylinder Heads offer a range of options, they may not be compatible with all engines. It's important to ensure that the heads are suitable for the specific application before making a purchase.

Indy Cylinder Heads 426-R4-27LK 426 Hemi Rocker Legend heads offer several advantages for performance enthusiasts and hot rodders, including improved flow, enhanced durability, and customizability. However, they also come with some disadvantages, such as cost, installation complexity, and compatibility concerns. Ultimately, the decision to purchase these heads depends on the specific goals, budget, and expertise of the individual.

If you're looking for high-performance cylinder heads for your Chrysler 426 Hemi engine, the Indy Cylinder Heads 426-R4-27LK 426 Hemi Rocker Legend heads are an excellent option. However, it's important to carefully consider the costs, installation requirements, and compatibility before making a purchase. If you're unsure about the suitability of these heads for your specific application, it may be worth consulting with a professional mechanic or engine builder.

Details:

New Rocker System Complete for 426-1 Legend Heads Include: 426-27 Chrome Molly IN EX Rockers 4140 Material 1.6 1.55 ratio - factory ratios are 1.57 1.52. 426-10 Hemi Clamp Kit for Shaft Clamps, studs, nuts washers. 426-29 Hemi Thick Wall Rocker Shafts set of 4. 426-27SP Side Springs.

part #: 426r427lk prices

• $399.99-$999.99

specifications rockeareng:

• for models: Hemi, Legend
• brand: Indy Cylinder Heads
• mpn: 426-r4-27lk
• type: Rocker Arm Set
• manufacturer warranty: 1 Year
• items included: Rockers, Shafts, Springs, Shims, Clamp Kit
• material: Cast Iron, Steel
• country/region of manufacture: United States
• vintage part: No

offer rockeareng:

• started: October 12, 2025
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1

shipping rockeareng:

• transit: 5-10 Days
• cost: $74.85
• class: Standard, Economy
• carrier: USPS, UPS
• type: Calculated
• service: USPS Ground Advantage, UPS Ground Saver

returns rockeareng:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

payments rockeareng:

• other
• credit card: Mastercard
• wallet: Google-pay

seller rockeareng:

• # reviews: 286
• rating: 100.0%
• city: Spokane, Washington

general rockeareng:

• condition: New
• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts

Indy Cylinder Heads 426-R4-27LK Is Similar To:

• 360-r4-14 Indy Cylinder Head New Rocker Arm Shafts (52.1% similar) Work with Indy or outbreak Heads for sure and should fit oem diameter long.new old stock Indy Cylinder head part 360-R4-14 rocker arm shafts with 3/8 holes...(July 18th, 2018)