fits model: 305, 350. year: 1982–2007.



( Brand: Gm ), ( Part Type: Bearing Crankshaft Block Motor ), ( Oe/oem Part Number: 4704h1 ), ( Manufacturer Part Number: 10120990 ), ( Country/region Of Manufacture: United States ), ( Vintage Part: Yes ), ( Lot Of 4 Nos Gm Main Bearings Crankshaft 1982-2007: 305 350 Small Block New Old Stock ), ( Performance Part: No )
Product Name: 10120990 NOS Gm Bearings - Crankshaft, Suitable for 1982-2007 GM 350 and 305 Block Engines
This product is a set of new old stock (NOS) bearings specifically designed for use on crankshafts in GM 350 and 305 engine blocks manufactured between the years 1982 and 2007. These bearings are of the highest quality, as they have been stored in controlled environments to ensure their preservation for an extended period, maintaining their original condition.
Each set includes a complete set of crankshaft bearings necessary for a large-block Chevrolet or Oldsmobile engine. These bearings guarantee a perfect fit and optimal performance as they were manufactured according to GM's original specifications.
The bearings come in pairs, ensuring the left and right crank positions are taken care of. Each pair includes a main bearing and counterweight bearing to ensure engine stability and smooth operation. These bearings are made from fine-grained steel, ensuring they provide excellent load carrying capacity and durability to the engine.
Installing these bearings ensures that your engine's vital components are protected from excessive wear, tear, and potential damage, providing improved engine performance and longevity. By replacing worn-out or damaged bearings with these high-quality NOS bearings, you are not only investing in your engine's reliability, but also ensuring your vehicle runs smoothly and efficiently.
When you choose these 10120990 NOS GM bearings, you're not just buying a replacement part, but a piece of automotive history, as they allow you to maintain or restore the authenticity of your 1982-2007 GM 350 and 305 block engine. With their flawless condition, you can trust that these bearings will meet or even exceed your expectations and offer you an unparalleled driving experience.
- OEM (Original Equipment Manufacturer) replacement: These bearings are manufactured by General Motors themselves, ensuring a proper fit and finish. They are engineered specifically for the 305/350 small block Chevrolet engines used in numerous vehicles during that era, ensuring compatibility and reliability.
- Improved Performance: OEM bearings offer optimal performance for your engine due to their precision engineering and materials used. They can handle stresses and loads effectively, thereby reducing the chances of a bearing failure.
- Durability: As these bearings are made by the original manufacturer, they benefit from the manufacturing processes and quality control measures exclusive to GM. This often leads to increased durability, enabling your engine to last longer and perform efficiently.
- Wide Availability: 10120990 Nos GM bearings are widely available in various auto part stores and online marketplaces. Their popularity and demand ensure that they are constantly in stock, making them a convenient choice for automotive repair and maintenance.
2. Cons of Buying 10120990 Nos GM Bearings:- Higher Cost: OEM bearings generally come with a higher price tag compared to aftermarket or rebuilt bearings due to their manufacturing costs (R&D, materials, and labor), along with factors such as brand reputation and distribution costs.
- Lack of Innovation: OEM bearings may not always offer the latest technological advancements since they follow the original engine design and specifications. Aftermarket manufacturers often incorporate new design practices and materials to provide more advanced features and improvements, which might be absent from these OEM bearings.
Conclusion:In conclusion, when deciding to buy 10120990 Nos GM bearings, it's essential to weigh the pros and cons. While these bearings offer OEM quality, reliability, and compatibility, they may be more expensive than aftermarket alternatives. Consider your budget, performance expectations, and availability of aftermarket innovations when making a decision. Ultimately, opting for 10120990 Nos GM bearings will provide you with the peace of mind and confidence that comes with having factory-original replacement components for your 305/350 small block Chevrolet engine.
Recommendation:I recommend considering both OEM and aftermarket bearings based on your priority concerns, such as cost, compatibility, and advancements. If you place a high importance on having genuine GM parts that come with a warranty and perform optimally in your stock engine, you may choose the 10120990 Nos GM bearings. On the other hand, if you are budget-conscious and could potentially benefit from aftermarket advancements in materials and design, an alternative aftermarket bearing may be a suitable consideration. No matter which option you choose, ensure the bearing model, size, and compatibility match the requirements of your vehicle and engine for a successful repair or upgrade.
See pictures for condition and wear as we rely heavily on photos. These are not new parts unless noted so please set your expectations accordingly. A used part may have dust, dirt, old paint, scratches or cracks. Free shipping is to the lower 48 states only.
Applications are based upon various sources, although I try to make sure research is correct it can be flawed so please verify your applications.