Product Description
Genuine Michigan MS-909 P-10 Main Bearings (NORS)
Restore the heart of your classic American muscle with this New Old Replacement Stock (NORS) Michigan MS-909 P-10 main bearing set. Engineered for precision and durability, these .010" undersize main bearings are designed for reground crankshafts in a wide range of General Motors V8 engines from 1967 to 1974, including popular Chevrolet, GMC, Pontiac, Buick, and Checker models. These bearings are crucial for supporting the crankshaft and ensuring smooth, reliable engine operation, making them an essential component for any period-correct engine rebuild.
Key Features:
- Brand: Michigan
- Part Number: MS-909 P-10
- Replaces OEM number: 3912038, 3912030
- Interchange: Federal-Mogul 14663M-10
- Position: Main Bearings
- Engine Fitment: Chevrolet 307, 327, 350, 400, 402, 454 V8; Pontiac 350, 400, 455 V8
- Origin: USA
- Condition: NORS (New Old Replacement Stock)
Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Checker | Marathon | 1968-1974 | V8 | |
| Chevrolet | Camaro / Chevelle / Impala / Nova / Corvette / Bel Air / Biscayne / Caprice / Monte Carlo | 1967-1974 | 307 / 327 / 350 / 400 / 402 / 454 V8 | Passenger Car |
| Chevrolet Truck | C/K Series Trucks | 1968-1974 | 307 / 327 / 350 / 400 / 402 / 454 V8 | |
| GMC Truck | C/K Series Trucks | 1968-1974 | 307 / 327 / 350 / 400 / 402 / 454 V8 | |
| Pontiac | Firebird / GTO / LeMans / Grand Prix / Catalina / Bonneville / Grandville | 1971-1972 | 350 / 400 / 455 V8 | |
| Buick | Skylark / GS / Electra / LeSabre / Riviera / Centurion / Apollo | 1967-1974 | V8 |
Fits Years:
1967 1968 1969 1970 1971 1972 1973 1974
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.
