SEA-DOO S78133 Performance Cylinder Head Seadoo 787 290923301

( Manufacturer Part Number: S78133 ), ( Part Type: Cylinder Head )

Review SEA DOO Seadoo 787 Performance Cylinder Head fits CHALLENGER GTX GSX XP SPX 1996–1997

Introducing the Sea-Doo S78133 96-97 GTX, GSX, XP, SPX Challenger 787 Performance Cylinder Head, a high-performance upgrade for your Sea-Doo watercraft. This cylinder head is specifically designed for Sea-Doo models from 1996 to 1997, including the GTX, GSX, XP, and SPX Challenger 787.

The S78133 cylinder head is an advanced design, engineered to deliver increased power and torque for an exhilarating ride on the water. The head features a high-flow intake and exhaust port design, which allows for optimal air and fuel mixture delivery to the engine. This results in more complete combustion, producing more horsepower and torque.

The cylinder head also includes a high-performance exhaust valve system, which provides better flow and efficiency. The valves are made from a durable material that can withstand the rigors of high-performance riding. The valve train is designed for smooth operation, reducing engine wear and providing better overall engine performance.

The S78133 cylinder head is also engineered for easy installation. It comes with all necessary hardware and gaskets, making the installation process straightforward and hassle-free. The cylinder head is also CNC machined for precise fitment, ensuring a perfect seal and eliminating the need for extensive engine modifications.

In summary, the Sea-Doo S78133 96-97 GTX, GSX, XP, SPX Challenger 787 Performance Cylinder Head is a high-performance upgrade for your Sea-Doo watercraft. It delivers increased power and torque, thanks to its high-flow intake and exhaust port design and high-performance exhaust valve system. The cylinder head is easy to install and comes with all necessary hardware, making it a must-have upgrade for any Sea-Doo enthusiast looking to take their riding experience to the next level.

The Sea-Doo GTX, GSX, XP, and SPX Challenger 787 models, featuring the 290923301 performance cylinder head, are high-performance watercraft engines known for their power and agility. Here are some pros and cons to consider before making a purchase:

1. Power: The high-performance cylinder head delivers increased power, enabling faster acceleration and higher top speeds.

2. Agility: These watercraft engines offer improved handling and maneuverability, allowing riders to navigate tight turns and perform stunts more easily.

3. Durability: Sea-Doo engines are built with robust materials and manufacturing processes, ensuring long-lasting performance and reliability.

4. Versatility: These engines can be used in a variety of watercraft models, providing flexibility for different riding styles and preferences.

1. Cost: High-performance engines like the Sea-Doo Challenger 787 models with the 290923301 cylinder head are more expensive than standard engines.

2. Maintenance: These engines require more frequent and thorough maintenance due to their high-performance capabilities.

3. Noise: The increased power of these engines can lead to higher noise levels, which may be a concern for some riders or those living in noise-sensitive areas.

4. Fuel consumption: High-performance engines consume more fuel than standard engines, leading to higher operating costs.

In conclusion, the Sea-Doo GTX, GSX, XP, and SPX Challenger 787 models with the 290923301 performance cylinder head offer significant power, agility, and versatility. However, they come with higher costs, increased maintenance requirements, and higher noise and fuel consumption levels.

If you are an experienced rider looking for maximum performance and thrills on the water, these engines may be a great choice for you. However, if you are a beginner or prefer a more economical and low-maintenance option, it may be worth considering a standard engine instead. Ultimately, the decision depends on your riding style, budget, and preferences.

Details:

OEM part number is 290923301. Assemblies where 290923301 is used 1997 SPX, 5834-5661 - Cylinder, Exhaust Manifold 787. This is a good used aftermarket Performance Cylinder Head with Domes from 1996 Seadoo GSX 787 800. Assemblies where 290923301 is used: 1996 Challenger, 5896 - Cylinder And Exhaust Manifold 5899 GSX, 5620 GTX, 5640 XP, 5858 5859 1997 CHALLENGER, 5603/5606 Cylinder, Challenger 18 5600/5601 5624 5642 SPX, 5834-5661 787 5662.

part #: s78133 prices

• $59.00-$299.99

specifications perwatercraft:

• for models: Gtx, Gsx, Xp, Spx, Challenger
• for makes: Sea-doo
• for years: 1996-1997
• mpn: S78133
• part type: Cylinder Head

seller perwatercraft:

• city: Santa Maria, California
• # reviews: 3990
• rating: 99.1%

shipping perwatercraft:

• transit: 3-8 Days
• carrier: USPS
• cost: $16.00
• type: Calculated
• class: Standard
• service: USPS Ground Advantage

general perwatercraft:

• condition: Used
• Parts Accessories > Personal Watercraft Parts > Other Parts

returns perwatercraft:

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

payments perwatercraft:

• credit card: Visa
• wallet: Paypal
• other

offer perwatercraft:

• started: June 10, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1

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