1. Rocker Arms & Parts Engines Components For Sale
  2. sku: 12491203592931633
  3. PSM JM4600

PSM JM4600 Heads Port Runner 260CC 72CC

fits model: Ls3. year: 2011.

Jm4600 Psm New Bare Aluminum Heads Ls3 11 Degree Rectangular Port 260cc Runner 72cc Pair

( Brand: Psm ), ( Manufacturer Part Number: JM4600 ), ( Non-domestic Product: No ), ( Type: Hardware Set )

Review PSM New Bare Aluminum Heads Degree Rectangular Port 260cc Runner 72cc Pair fits LS3 2011

The PSM JM4600 Bare Heads from Power Stroke Motorsports are high-performance intake manifolds specifically designed for diesel applications. This intake manifold is compatible with LS3 engines and features two 60cc runners and one 72cc runner, making it an excellent choice for those seeking optimal power and efficiency.

Each intake manifold head is meticulously crafted using advanced manufacturing techniques to ensure precision and durability. The bare heads are designed to be used in conjunction with other intake components, allowing for customization and flexibility based on individual engine requirements.

The PSM JM4600 Bare Heads are engineered to provide superior airflow, enhancing combustion efficiency and increasing power output. The intake ports are carefully designed to minimize turbulence and maximize air velocity, ensuring optimal fuel-air mixture delivery to the engine.

These intake manifolds are made from high-quality materials, including aluminum, which not only provides excellent heat dissipation properties but also keeps the weight down for improved engine performance. Additionally, the bare heads come with a polished finish, adding a touch of elegance to your engine bay.

Installing the PSM JM4600 Bare Heads is a straightforward process, as they are designed to fit seamlessly onto LS3 engines with a port size of 260cc. The manifolds come with all necessary hardware for a hassle-free installation.

Upgrading to the PSM JM4600 Bare Heads is an investment in your vehicle's performance, delivering increased horsepower and torque. Whether you're looking to take your daily driver to the next level or build a competition engine, these intake manifolds are an excellent choice for diesel enthusiasts seeking maximum power and efficiency.

The PSM JM4600 Bare Heads with LS3 Port 260cc Runner 72cc are aftermarket cylinder heads designed for use in Kawasaki Jet Ski engines. Here are some potential pros and cons of purchasing these heads:

Pros:

1. Improved Performance: Aftermarket cylinder heads are often designed to provide better performance than stock heads. In the case of the PSM JM4600 heads, they are advertised to increase horsepower and torque, resulting in faster acceleration and improved overall engine performance.

2. Durability: Aftermarket heads are often made from higher quality materials than stock heads, which can result in increased durability and longevity. The PSM JM4600 heads are made from aluminum alloy, which is known for its strength and resistance to corrosion.

3. Customization: Aftermarket cylinder heads offer the opportunity to customize your engine to meet specific performance goals. The PSM JM4600 heads are available in various port sizes and runner lengths, allowing for fine-tuning of the engine for different applications.

4. Cost-Effective: In some cases, aftermarket cylinder heads can be a cost-effective alternative to a complete engine replacement. The PSM JM4600 heads are priced competitively compared to other aftermarket options, making them an attractive choice for those looking to improve their engine's performance without breaking the bank.

Cons:

1. Installation: Installing aftermarket cylinder heads can be a complex process that requires specialized tools and knowledge. The installation process for the PSM JM4600 heads may require the assistance of a professional mechanic or engine builder.

2. Compatibility: Aftermarket cylinder heads may not be compatible with all engines or engine configurations. It is essential to ensure that the PSM JM4600 heads are compatible with your specific Jet Ski model and engine configuration before making a purchase.

3. Warranty: Installing aftermarket cylinder heads may void the manufacturer's warranty on your Jet Ski engine. It is essential to understand the warranty implications before making a purchase.

4. Risk: Installing aftermarket cylinder heads carries some risk, as there is always a chance that the heads may not perform as expected or may even cause damage to the engine. It is essential to purchase from a reputable manufacturer and install them correctly to minimize these risks.

Conclusion:

The PSM JM4600 Bare Heads with LS3 Port 260cc Runner 72cc offer several benefits for Jet Ski owners looking to improve the performance of their engines. These benefits include improved performance, increased durability, customization options, and cost-effectiveness. However, there are also some potential drawbacks, such as the complexity of installation, compatibility issues, warranty implications, and risk. Ultimately, the decision to purchase the PSM JM4600 heads should be based on a careful consideration of these factors and a thorough understanding of your specific Jet Ski engine and performance goals.

Recommendation:

If you are confident in your ability to install the PSM JM4600 Bare Heads correctly and have a clear understanding of your Jet Ski engine and performance goals, then these heads could be an excellent choice for improving your engine's performance. However, if you have any doubts about your ability to install the heads or are concerned about compatibility or warranty issues, then it may be worth considering other options, such as a complete engine replacement or working with a professional mechanic or engine builder to determine the best solution for your specific situation.

Details:

Assembled No, Combustion Chamber Style Heart, Volume68.4cc, Cylinder Head Finish Natural, Material Aluminum, Exhaust Port Location Standard, Shaped-port, Intake Shape Cathedral, Runner260cc, Quantity Sold Individually, Valve Guide Material Bronze. Bare Aluminum Heads LS3 11 Degree Rectangular Port 260CC Runner 72cc Pair.

specifications rockeareng:

  • for models: Ls3
  • for years: 2011
  • brand: Psm
  • mpn: Jm4600
  • non-domestic product: No
  • type: Hardware Set

seller rockeareng:

  • city: Fort Lauderdale, Florida
  • rating: 98.3%
  • # reviews: 45632

offer rockeareng:

  • quantity: 2
  • availability: In Stock
  • started: August 22, 2025
  • sold: 0
  • options: Ship-to-home

returns rockeareng:

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

general rockeareng:

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

payments rockeareng:

  • credit card: Mastercard
  • other
  • wallet: Paypal

shipping rockeareng:

  • carrier: FedEx
  • type: Fixed
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $50.00
  • transit: 4-8 Days
for models: ls3, for years: 2011, non-domestic product: no, type: hardware set,
category: auto parts > engines engine parts > valvetrain components > rocker arms parts, sku: 12491203592931633,
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