ITEM SPECIFICS:

• Brand: Holley / Chevrolet OEM

• Manufacturer Part Number: 3878261-EH / List-3310

• Date Code: 9A3 (January 1969, 3rd Week)

• Type: Model 4150 Performance Carburetor

• CFM: 780

• Number of Barrels: 4

• Country/Region of Manufacture: United States

• Condition: Used (Core for rebuild)

DESCRIPTION:

Up for auction/sale is a highly collectible, authentic vintage Holley List-3310 (Model 4150) 4-Barrel Carburetor.

This is NOT a modern, cheap aftermarket universal 3310 reissue. This is a rare, authentic 1969 over-the-counter Chevrolet Service Component featuring the highly sought-after factory 3878261-EH stamping—originally engineered for the legendary 1965 Chevelle Malibu SS Z-16 396ci/375HP L37 Big Block.

Because it carries a 1969 production date code, this unit was purchased directly from a Chevy dealership parts counter in the late 1960s to service a muscle car under warranty or build a period-correct street machine.

🌟 100% MATCHING NUMBERS COMPONENT HIGHLIGHTS:

Unlike most vintage carburetors that have been mismatched or butchered with incorrect replacement parts over the last 50+ years, this assembly remains 100% factory-correct down to the internal blocks:

1. Main Choke Horn Stampings:

• 3878261-EH (GM Engineering / Chevy Part Number)

• LIST-3310 (True early-series 780 CFM rating, dual metering block configuration)

• 9A3 (Date Code: 1969, January, 3rd Week)

2. Primary Metering Block: Stamped 5271 — The exact, correct factory-matching front block for this specific build series.

3. Secondary Metering Block: Stamped 4519 — The "Holy Grail" high-performance rear block configuration. This block was strictly reserved for early 780 CFM units and elite solid-lifter big blocks (like the Z28’s List-4053 and COPO List-4346).

WHY THIS LIST-3310 IS DESIRABLE:

Later commercial versions (3310-2, 3310-3, etc.) were cheapened by Holley, losing their rear metering blocks in favor of fixed metal plates. Because this unit is a true, matching early-pattern 4150 style, it features fully replaceable jets on both the front and rear blocks, making it infinitely tunable and highly prized by collectors and engine builders.

CONDITION:

• Genuine Vintage Core: Sold exactly as pictured, straight off the shelf.

• All major castings look solid without visible cracks.

• The throttle linkages and butterflies move, but the unit will need a standard cleanup and refresh/rebuild kit before being bolted to an engine.

• Includes original down-leg boosters, dual feed fuel bowls, and matching-numbers blocks as shown in the detailed close-up photos.

Perfect for a high-end period-correct Day-Two restoration, NCRS-style correct Chevy big block build, or classic muscle car collector.

Shipping: Securely packaged and shipped with tracking and insurance. Please look closely at all photos to verify condition and stamps for your application. Sold AS-IS for rebuild.