1. USED Car/Truck Carburetors Items
  2. sku: 6238440130211632
  3. DASHMAN MONOJ.25

DASHMAN MONOJ.25 Monojet Gm Carburetor Insulator Phenolic 1ME 1MV Spacer 1/4

fits model: Mv. make: Rochester.

Monoj.25 Dashman For Rochester Monojet 1me 1mv Mv M Gm Carburetor Insulator Phenolic Spacer 1/4 Inch

( Brand: Dashman ), ( Manufacturer Part Number: MONOJ.25 ), ( Country Of Manufacture: United States ), ( Material: Phenolic ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front ), ( Choke Type: Both ), ( Type: Carburetor ), ( Features: Down Draft ), ( Surface Finish: Machined Phenolic ), ( Universal Fitment: No )

Review DASHMAN For Rochester Monojet 1me 1mv Gm Carburetor Insulator Phenolic Spacer 1/4 Inch fits MV

Introducing the Dashman MonoJ.25, a high-performance phenolic spacer specifically designed for use with Rochester Quadra-Jet 1ME, 1MV, and 1AV carburetors, as well as select GM carburetors that utilize a 1/4-inch insulator. This spacer, manufactured by Dashman, is an essential upgrade for those seeking improved engine performance and efficiency.

The Dashman MonoJ.25 is crafted from premium phenolic material, known for its superior heat resistance and insulation properties. This spacer replaces the factory-installed rubber insulator, which can degrade over time and negatively impact engine performance. By upgrading to this phenolic spacer, you can ensure consistent engine temperature, improved idle stability, and enhanced overall performance.

The Dashman MonoJ.25 is a direct fit for the specified carburetor models and comes with a 1/4-inch insulator thickness. Its precise design ensures a seamless installation process, requiring no modifications to your existing carburetor. The spacer's flat, uniform surface guarantees optimal contact with the carburetor body, ensuring a secure and stable fit.

This upgrade not only enhances your engine's performance but also contributes to its longevity. The phenolic material's exceptional durability eliminates the need for frequent replacements, saving you both time and money in the long run. Additionally, its resistance to heat, oil, and other harsh chemicals ensures that it maintains its integrity, even in the most demanding driving conditions.

In conclusion, the Dashman MonoJ.25 is an essential upgrade for any vehicle equipped with a Rochester Quadra-Jet 1ME, 1MV, or 1AV carburetor or a select GM carburetor with a 1/4-inch insulator. By replacing the factory-installed rubber insulator with this premium phenolic spacer, you can enjoy improved engine performance, enhanced efficiency, and prolonged engine life.

The Dashman Monojet MNOJ.25 is a phenolic spacer or insulator designed for use with the Rochester Quadrajet, 1ME, 1MV, and MV GM carburetors. This part helps to improve the performance of the carburetor by reducing heat transfer between the carburetor body and the engine. Here are some pros and cons of buying this part:

Pros:

1. Improved Carburetor Performance: The Monojet MNOJ.25 is designed to reduce heat transfer, which can help improve the overall performance of the carburetor. By keeping the carburetor cooler, the fuel mixture can be more consistently vaporized, leading to better fuel economy and improved engine performance.

2. Easy Installation: This part is relatively easy to install, as it simply replaces the existing insulator or spacer in the carburetor. No special tools are required, and the installation process should not take more than an hour or two.

3. Durable Construction: The Monojet MNOJ.25 is made of high-quality phenolic material, which is known for its durability and resistance to heat. This means that the part should last for a long time, even in high-performance applications.

4. Affordable: Compared to other performance upgrades, the Monojet MNOJ.25 is an affordable way to improve the performance of your carburetor.

Cons:

1. May Not Provide Dramatic Improvements: While the Monojet MNOJ.25 can help improve the performance of your carburetor, it may not provide dramatic improvements, especially if your carburetor is already in good condition.

2. Not a Cure-All: This part is not a cure-all for carburetor issues. If you have significant performance problems, you may need to address other issues, such as fuel pressure or vacuum leaks.

3. May Not Fit All Applications: The Monojet MNOJ.25 is designed specifically for the Rochester Quadrajet, 1ME, 1MV, and MV GM carburetors. If you have a different type of carburetor, this part may not fit.

In conclusion, the Dashman Monojet MNOJ.25 is a worthwhile upgrade for those looking to improve the performance of their Rochester Quadrajet, 1ME, 1MV, or MV GM carburetor. It is an affordable, easy-to-install part that can help reduce heat transfer and improve fuel mixture vaporization. However, it may not provide dramatic improvements, and it may not fit all applications. Ultimately, if you are experiencing issues with your carburetor, it is worth considering this part as part of a larger performance upgrade plan.

Recommendation: If you have a Rochester Quadrajet, 1ME, 1MV, or MV GM carburetor and are looking to improve its performance, the Dashman Monojet MNOJ.25 is a worthwhile investment. It is an affordable, easy-to-install part that can help reduce heat transfer and improve fuel mixture vaporization. However, keep in mind that it may not provide dramatic improvements on its own, and it may not fit all applications. If you are experiencing significant performance issues, it may be worth considering other upgrades as well.

Details:

Check the dimensions below to see if it will fit your application. This has a bore of 1.75 and bolt hole distance 2 15/16 to center, clearance drilled for 3/8 studs will fit different model's or carbs. This is a 1/4 phenolic carb insulator that helps prevent carburetor boiling or heat soak. Includes free sticker.

This one barrel carburetor is found on GM vehicles with a 6 cylinder that was used in many years by Chevy, Pontiac, and Oldsmobile.

part #: monoj25 price

  • $22.00

specifications carbcoon:

  • for models: Mv
  • for makes: Rochester
  • brand: Dashman
  • mpn: Monoj.25
  • country of manufacture: United States
  • material: Phenolic
  • vintage part: Yes
  • placement on vehicle: Front
  • choke type: Both
  • type: Carburetor
  • features: Down Draft
  • surface finish: Machined Phenolic
  • universal fitment: No

shipping carbcoon:

  • cost: $5.50
  • transit: 3-8 Days
  • type: Calculated
  • service: USPS First Class, USPS Priority Mail Small Flat Rate Box, USPS Priority Mail Express
  • class: Standard, Expedited
  • carrier: USPS

seller carbcoon:

  • city: Viroqua, Wisconsin
  • rating: 99.7%
  • # reviews: 15992

offer carbcoon:

  • sold: 0
  • availability: In Stock
  • started: May 20, 2025
  • quantity: 2
  • options: Ship-to-home

returns carbcoon:

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

general carbcoon:

  • condition: New
  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors

payments carbcoon:

  • credit card: Mastercard
  • other
  • wallet: Paypal
for models: mv, for makes: rochester, country of manufacture: united states, vintage part: yes, placement on vehicle: front, choke type: both, type: carburetor, features: down draft, surface finish: machined phenolic, universal fitment: no,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, material: phenolic, sku: 6238440130211632,

Dashman MONOJ.25 Is Similar To:

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1 offer $22.00 USD
  • Offer #1: $22.00 price + $8.30 shipping estimate = $30.30* total. This has a bore of 1.75" and a bolt hole distance of 2 15/16" center to center, clearance drilled for 3/8" studs and will fit different models or carbs.+$8.30 shipping

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