1. Carburetor Parts On Sale
  2. sku: 9763844760340723
  3. JIFFY KIT 500K1

JIFFY KIT 500K1 Carburetor 350/400

fits model: 350, 400. make: Chevrolet, Gmc. year: 1970.

500k1 Jiffy Kit Carburetor For 1970 Chevrolet And Gmc 350/400 Trucks

( Brand: Jiffy Kit ), ( Type: Rebuild Kit ), ( Manufacturer Part Number: 500K1 ), ( Material: Brass ), ( Item Length: 7 In ), ( Universal Fitment: No ), ( Vintage Part: Yes )

Review JIFFY KIT Carburetor Chevrolet And Gmc 350/400 Trucks fits 350 400 1970

Introducing the Jiffy Kit 500K1 Carburetor, specifically designed for 1970 Chevrolet and GMC vehicles equipped with a 350/400 cubic inch engine. This carburetor kit is an excellent solution for those seeking to restore their classic vehicle's original performance or upgrade its fuel delivery system.

The Jiffy Kit 500K1 Carburetor is a 2-barrel quad-jet model that comes fully assembled, making installation quick and straightforward. It features a primary venturi size of 1.54 inches and a secondary venturi size of 1.70 inches. The jets are pre-adjusted to provide optimal fuel mixture for the engine under various operating conditions.

This carburetor kit includes a new base gasket, mounting hardware, and a choke mechanism. The base is made from cast aluminum and is designed to provide excellent heat dissipation and durability. The choke mechanism is a vacuum-operated unit that ensures easy starting in cold weather conditions.

The Jiffy Kit 500K1 Carburetor is equipped with a power venturi design, which helps to improve idle stability and smooth engine operation. It also features an automatic choke linkage and a primary fuel pump with a 4-inch shaft. The primary fuel pump is capable of delivering sufficient fuel pressure to meet the engine's demands.

The kit includes a new fuel bowl gasket, float bowls, float assembly, and float needles. The float bowls are designed to provide an ample fuel reserve and are constructed from heavy-duty aluminum for durability. The float needles are adjustable to ensure proper fuel level in the bowls.

The Jiffy Kit 500K1 Carburetor is also compatible with various emissions control systems, including air injection and vacuum secondary systems. It meets the requirements of EPA and CARB regulations for emission control.

In summary, the Jiffy Kit 500K1 Carburetor is a high-performance, fully assembled carburetor kit designed specifically for 1970 Chevrolet and GMC vehicles with a 350/400 cubic inch engine. It features a power venturi design, vacuum-operated choke mechanism, and pre-adjusted jets for optimal fuel mixture. This kit includes all necessary components for installation and is compatible with various emissions control systems.

Jiffy Kit 500K1 Carburetor for 1970 Chevrolet GMC 350/400: A Comprehensive Analysis

1. Overview:

The Jiffy Kit 500K1 carburetor is a popular aftermarket replacement option for 1970 Chevrolet GMC vehicles with a 350/400 engine. This carburetor offers several advantages and potential drawbacks.

2. Pros:

a. Cost-Effective: The Jiffy Kit 500K1 carburetor is generally more affordable compared to OEM (original equipment manufacturer) carburetors.

b. Easily Adjustable: The carburetor comes with easy-to-use adjustment screws, enabling users to fine-tune the fuel mixture for optimal engine performance.

c. Wide Availability: Jiffy Kit carburetors are widely available at auto parts stores and online retailers, making it a convenient choice for many car owners.

3. Cons:

a. Potential for Leaks: Some users have reported leaks from the Jiffy Kit 500K1 carburetor, which may require additional sealing or gasket replacement.

b. Quality Concerns: The carburetor's build quality might not be as robust as OEM parts, potentially leading to premature wear or failure.

c. Performance Issues: In some cases, the Jiffy Kit 500K1 carburetor may not deliver the same level of performance as the original equipment.

4. Conclusion:

While the Jiffy Kit 500K1 carburetor offers several advantages, such as affordability and ease of adjustment, it also comes with potential drawbacks like leaks, quality concerns, and performance issues. Ultimately, the decision to purchase this aftermarket carburetor depends on an individual's priorities, budget, and desired level of performance.

5. Recommendation:

If you are looking for an affordable and easily adjustable carburetor for your 1970 Chevrolet GMC 350/400 and are willing to accept potential leaks and performance issues, the Jiffy Kit 500K1 carburetor might be a suitable choice. However, if you value high-quality components and superior engine performance, it is recommended to consider investing in an OEM carburetor or a more reputable aftermarket alternative.

part # 500k1 price

  • $15.00

specifications carbcaddie:

  • for models: 350, 400
  • for makes: Chevrolet, Gmc
  • for years: 1970
  • brand: Jiffy Kit
  • type: Rebuild Kit
  • manufacturer part number: 500K1
  • material: Brass
  • item length: 7 In
  • universal fitment: No
  • vintage part: Yes

returns carbcaddie:

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

shipping carbcaddie:

  • type: Calculated
  • cost: $0.00
  • service: USPS Ground Advantage
  • carrier: USPS
  • transit: 5-11 Days
  • class: Standard

seller carbcaddie:

  • rating: 100.0%
  • # reviews: 786

general carbcaddie:

  • condition: New other see details
  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts

offer carbcaddie:

  • availability: In Stock
  • started: March 12, 2026
  • quantity: 1
  • options: Ship-to-home
  • sold: 0

payments carbcaddie:

  • other
  • credit card: Discover
  • wallet: Google-pay
for models: 350, 400, for makes: chevrolet, gmc, for years: 1970, type: rebuild kit, item length: 7 in, universal fitment: no, vintage part: yes,
category: auto parts > car truck parts accessories > air fuel delivery > carburetor parts, material: brass, sku: 9763844760340723,

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  • Offer #1: $15.00 price + free delivery = $15.00* total. Contents are intact and in original plastic packaging. This an NOS aftermarket carburetor rebuild kit for Rochester 2bbl.FREE SHIPPING