Product Description
Genuine Lempco S-393 Crankshaft Sprocket (NORS)
This Lempco S-393 crankshaft sprocket is a New Old Replacement Stock (NORS) component, designed for a wide range of Chevrolet V8 standard engines and trucks from 1966 to 1984. Manufactured by Lempco, a trusted American brand, this 19-tooth sprocket is a critical part of your engine's timing system, ensuring precise synchronization for optimal performance. It fits various Chevrolet models equipped with 396, 400, 402, 427, and 454 cubic inch V8 engines, making it an ideal choice for classic car and truck restorations.
Key Features:
- Brand: Lempco
- Part Number: S-393
- Replaces OEM number: 3902426 (for V8 Standard Engines), 3902422 (for Chevrolet Trucks)
- Position: Crankshaft
- Engine Fitment: Chevrolet V8 396, 400, 402, 427, 454
- Origin: USA
- Condition: NORS (New Old Replacement Stock)
Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Chevrolet | V8 Standard Engines | 1967-1970 | 396 | 19 Teeth; Replaces OEM 3902426 |
| Chevrolet | V8 Standard Engines | 1970-1971 | 400 | 19 Teeth; Replaces OEM 3902426 |
| Chevrolet | V8 Standard Engines | 1972 | 400 | 19 Teeth; Replaces OEM 3902426 |
| Chevrolet | V8 Standard Engines | 1967-1969 | 427 | 19 Teeth; Replaces OEM 3902426 |
| Chevrolet | V8 Standard Engines | 1970-1984 | 454 | 19 Teeth; Replaces OEM 3902426 |
| Chevrolet | Truck | 1967-1982 | 396 | 19 Teeth; Replaces OEM 3902422 |
| Chevrolet | Truck | 1967-1982 | 400 | 19 Teeth; Replaces OEM 3902422 |
| Chevrolet | Truck (L.D.) | 1966-1984 | 454 | 19 Teeth; Replaces OEM 3902422 |
Fits Years:
1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984
Note on Stock Photos: Due to our inventory of multiple identical units for this specific part number, we utilize representative stock photos for this listing. You will receive a component that strictly meets all listed specifications and fitment requirements. Please be aware that because these are vintage parts, minor cosmetic variations—such as surface finish, color, or production markings—may exist between different manufacturing runs. These slight aesthetic differences are a result of historical production processes and do not impact the part's integrity, performance, or authenticity.
A Note on Fitment Accuracy: We manually research our fitment data using vintage manufacturer catalogs to provide you with the most accurate information possible. However, because we are human and these decades-old resources can occasionally contain errors, we cannot guarantee 100% accuracy. We strongly encourage you to perform your own due diligence and verify this part number for your specific application before purchasing. Please note that this part may also fit other vehicles or years not explicitly listed in our research.
Unbeatable Prices & Expectations
While many of our vintage parts were manufactured decades ago, they remain unused and high-quality. Some original boxes may show signs of shelf-wear, such as dust, tape, or surface distress from years of storage. Rest assured, the components inside have been inspected to ensure they are complete and ready to help you finish your project without breaking the bank.
