1. USED Car/Truck Carburetors Items
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  3. MOROSO MOR65228

MOROSO MOR65228 Holley Float Carburetor Jet Spacer 65440

Mor65228 Moroso 65228 Holley Float Carburetor And 65440 Jet Spacer Lot

( Brand: Moroso ), ( Manufacturer Part Number: MOR65228 ), ( Package Height: In ), ( Type: Carburetor ), ( Manufacturer Warranty: Lifetime ), ( Fitment Type: Performance ), ( Quantity: Please Contact Partsterr To Confirm Quantity ), ( Product Weight: Lbs ), ( Product Notes: Key Product Attributes Included Below In Our Listing )

Review MOROSO 65228 Holley Float Carburetor And Jet Spacer Lot

The Moroso Mor65228 Holley Float Carburetor Jet Spacer is an essential accessory for any hot rod or performance engine application that utilizes a Holley 650 CFM carburetor with a 654-40 jet size. This jet spacer, manufactured by Moroso Engine Products, is designed to provide precision fuel delivery and fine-tune the carburetor's performance.

Made from high-quality billet aluminum, the Moroso Mor65228 jet spacer is engineered to fit perfectly with the Holley 650 CFM carburetor models, including the 650-650-1, 650-650-2, and 650-650-3. Each jet spacer comes pre-drilled and ready to accept the appropriate jet size, which in this case is the 654-40 jet. The jet spacer's precise machining ensures a secure fit and eliminates the need for any additional adapters or modifications.

The Moroso Mor65228 jet spacer is an excellent upgrade for enthusiasts seeking improved fuel atomization and more consistent fuel delivery. By replacing the stock jet spacer with this high-performance alternative, users can optimize their carburetor's performance throughout the entire RPM range. This results in enhanced throttle response, smoother idling, and more power at the wheels.

Moreover, the Moroso Mor65228 jet spacer is an excellent choice for those looking to run different fuel blends or altitudes, as it offers the flexibility to easily swap out jet sizes based on specific engine requirements. With the Moroso Mor65228 jet spacer, users can fine-tune their carburetor setup for optimal performance under various driving conditions.

In summary, the Moroso Mor65228 Holley Float Carburetor Jet Spacer is a must-have accessory for any enthusiast running a Holley 650 CFM carburetor with a 654-40 jet size. Its precision machining, high-quality billet aluminum construction, and ability to fine-tune fuel delivery make it an invaluable addition to any performance engine application.

Moroso Mor65228 Holley Float Carburetor 65440 Jet Spacer: A Detailed Analysis

The Moroso Mor65228 Holley Float Carburetor 65440 Jet Spacer is a popular choice among automotive enthusiasts for their hot rods and custom builds. In this analysis, we will discuss the key features, pros, cons, and a concluding recommendation.

Features:

1. Holley 650 CFM Double Pumper Carburetor

2. Moroso 65440 Jet Spacer

3. High-performance float design

4. Adjustable primary and secondary jet needles

5. Suitable for various fuel systems

Pros:

1. High Air Flow: The Holley 650 CFM Double Pumper Carburetor delivers impressive airflow, ensuring optimal engine performance.

2. Versatility: The jet spacer is compatible with various fuel systems, including EFI and mechanical fuel injection.

3. Easy Tuning: Adjustable primary and secondary jet needles allow for fine-tuning the carburetor to specific engine requirements.

4. High-Performance Floats: The high-performance floats prevent fuel starvation during high RPMs or hard acceleration.

5. Quality Construction: Moroso and Holley are known for their durable and robust components, ensuring long-lasting performance.

Cons:

1. Complex Installation: Installing the carburetor and jet spacer may require professional expertise or extensive mechanical knowledge.

2. Expensive: Compared to other standard carburetors, this setup may be more costly due to the Holley brand and additional jet spacer.

3. Requires Maintenance: Regular cleaning and tuning are essential to ensure proper functioning, which can be time-consuming.

Conclusion:

The Moroso Mor65228 Holley Float Carburetor 65440 Jet Spacer is a high-performance, versatile, and durable option for automotive enthusiasts seeking optimal engine performance. While it may require professional installation and regular maintenance, the benefits of improved airflow, fine-tuning capabilities, and compatibility with various fuel systems make it a worthwhile investment.

Recommendation:

If you're looking for a high-performance carburetor setup for your hot rod or custom build, the Moroso Mor65228 Holley Float Carburetor 65440 Jet Spacer is an excellent choice. Its impressive airflow, adjustability, and compatibility with various fuel systems make it a worthwhile investment, despite the complex installation and higher cost compared to standard carburetors.

Details:

Moroso 65228 Holley Float Carburetor 65440 Jet Spacer Lot 2 of each, brand new.

part #: mor65228 prices

  • $9.99-$25.99

specifications carbcoon:

  • brand: Moroso
  • mpn: Mor65228
  • package height: In
  • type: Carburetor
  • manufacturer warranty: Lifetime
  • fitment type: Performance
  • quantity: Please Contact Partsterr To Confirm Quantity
  • product weight: Lbs
  • product notes: Key Product Attributes Included Below In Our Listing

seller carbcoon:

  • city: Orlando, Florida
  • rating: 100.0%
  • # reviews: 2071

payments carbcoon:

  • wallet: Apple-pay
  • credit card: Visa
  • other

returns carbcoon:

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

offer carbcoon:

  • options: Ship-to-home
  • availability: In Stock
  • best offers: True
  • started: April 19, 2026
  • sold: 0
  • quantity: 1

shipping carbcoon:

  • carrier: USPS
  • transit: 4-9 Days
  • service: USPS Ground Advantage
  • class: Standard
  • type: Calculated
  • cost: $0.00

general carbcoon:

  • condition: New
  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
package height: in, type: carburetor, manufacturer warranty: lifetime, fitment type: performance, quantity: please contact partsterr to confirm quantity, product weight: lbs, product notes: key product attributes included below in our listing,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 10930344202592881,

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5 offers $9.99–$25.99 USD
  • Offer #1: $9.99 price + $8.75 shipping estimate = $18.74* total. Carburetor Jet Extension - Pair. These extensions are CNC-machined for precise fit and maximum fuel flow.+$8.75 shipping
  • Offer #2: $25.99 price + $15.99 shipping estimate = $41.98* total. Jet Extension, Fits Standard Holley Jets, 1/4"-32 Moroso Jet Extension Fits Standard Holley Jets.+$15.99 shipping
  • Offer #3: $25.99 price + $22.96 shipping estimate = $48.95* total. STD Holley Jets. Manufacturer Part Number:.+$22.96 shipping
  • Offer #4: $35.04 price + $0.00 shipping estimate = $35.04* total. HOLLEY JET SPACER, 1/4-32. Manufacturer: Moroso Performance Products.FREE SHIPPING
  • Offer #5: $76.46 price + $0.00 shipping estimate = $76.46* total. Moroso 65228 Holley Float Carburetor Float & Jet Spacer Lot 2 of each, brand new.FREE SHIPPING

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