Genuine Johnson SET-517 Main Bearing Set (NORS)
This is a premium NORS (New Old Replacement Stock) Main Bearing Set manufactured by Johnson. Designed for the early Chevrolet Small Block V8 era, this set is a precise fit for the 1955-1956 265 cubic inch engine found in passenger cars and Task Force trucks. Proudly made in the USA, this component is essential for maintaining crankshaft alignment and oil pressure in your Tri-Five restoration. These bearings are finished to a .002" (X2) undersize, ideal for compensating for minimal crankshaft wear or precision bearing clearance adjustments in a professional-grade rebuild.
Key Features:
- Brand: Johnson
- Part Number: SET-517
- OEM Number: 3715032 / 3730189
- Position: Crankshaft Main Bearings
- Engine Fitment: Chevrolet 265 V8
- Size: .002" Undersize (X2)
- Origin: USA
- Condition: NORS (New Old Replacement Stock)
Verified Vehicle Fitment:
| Make |
Model |
Year |
Engine |
Notes |
| Chevrolet |
Bel Air / 210 / 150 / Nomad / Delray |
1955-1956 |
265 V8 |
Main Bearing Set |
| Chevrolet Truck |
3100 / 3200 / 3600 / Suburban (Task Force) |
1955-1956 |
265 V8 |
Main Bearing Set |
Fits Years:
1955 1956
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 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 parts 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.
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.
