Always the correct part
We know our products
Restore the fuel delivery system of your high-performance big block Chevy with this genuine 40358 mechanical fuel pump. This is a vintage rebuilt part, manufactured in the USA. It has been professionally remanufactured using a high-quality original deep-canister core to ensure period-correct appearance and reliable performance for your 396 CID or 427 CID V8 engine.
This part is designed for the engine-mounted position on 1966 Chevrolet models, including the Impala, Chevelle, and Bel Air, specifically for high-output 375 HP (L78) and 425 HP (L72) applications. This unit was professionally reconditioned by a U.S. rebuilder near Denver, CO, between the late 1980s and early 1990s, offering dependable operation for your vintage muscle car.
Note on Stock Photos: Due to our volume of identical, interchangeable inventory, we use representative stock photos for this model. The image is for reference only and may depict a specific manufacturer (e.g., 'AC'). You will receive a pump that meets all listed specifications, which may be from the manufacturer shown or a fully equivalent alternative.
A Note on Fitment Accuracy: We manually research and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these pumps may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
| Make | Model | Year | Engine | Notes |
| Chevrolet | Chevelle / El Camino | 1966 | 396 V8 | 375 HP (L78) High Performance |
| Chevrolet | Impala / Bel Air / Biscayne | 1966 | 427 V8 | 425 HP (L72) High Performance |
| Chevrolet | Impala | 1966 | 396 V8 | High Performance Applications |
1966
We scour the country to find the best deals on NOS and NORS parts so we can pass the savings on to you. Our vintage inventory is acquired from old auto parts stores, warehouses, and private collections. While these parts are unused or professionally rebuilt, their packaging and surfaces may show signs of shelf wear or age due to decades of storage. Rest assured, every part is a genuine piece of automotive history, built to the standards of the era it represents.