GM 136857 Nos Flywheel Crankshaft Lock 7/16

( Brand: Gm ), ( Part Type: Flywheel Crankshaft Lock ), ( Oe/oem Part Number: Lock Washer 7/16 ), ( Manufacturer Part Number: 136857 ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review GM Lot Nos Chevy Cyl Flywheel To Crankshaft 7/16 Inch Lock fits CORVETTE 1942–1964

The GM 136857 is a 46-piece set of flywheels and crankshafts specifically designed for 1942-1964 Chevrolet Corvette engines. This set is an essential upgrade for classic Corvette enthusiasts looking to restore or upgrade their vehicles.

The flywheels in this set are precision-machined to meet original equipment specifications. Each flywheel features a smooth, flat surface for optimal clutch engagement and improved power transfer. The flywheels are also drilled with a 7/16-inch bolt pattern, ensuring a perfect fit with the corresponding crankshaft and clutch assembly.

The crankshafts in this set are also meticulously engineered to meet original specifications. These crankshafts are known for their durability and reliable performance. Each crankshaft is precisely balanced and features a 7/16-inch locking bolt pattern to ensure a secure fit with the corresponding flywheel.

The 7/16 locking bolts included in this set are essential for securing the flywheel to the crankshaft. These bolts are manufactured to meet the original specifications, ensuring a proper fit and function. They are also made from high-strength material to provide the necessary torque and prevent loosening.

Overall, this GM 136857 set is an ideal solution for Corvette enthusiasts seeking to restore or upgrade their classic vehicles. Each component is designed to meet original equipment specifications, ensuring optimal performance and reliability. By installing these new flywheels and crankshafts, along with the accompanying 7/16 locking bolts, you can enhance the power delivery and overall driving experience of your 1942-1964 Chevrolet Corvette.

Buying a new GM 136857 46-numbers flywheel and crankshaft kit for a 1942-1964 Chevy Corvette involves considering several pros and cons to determine if it's the right choice for your restoration project.

1. Authenticity: A factory-reconditioned or new flywheel and crankshaft from GM ensures that you have the correct and authentic components for your Corvette, which is essential for maintaining its value and historical accuracy.

2. Improved Performance: A new flywheel and crankshaft can lead to improved engine performance due to reduced wear, better balance, and smoother operation.

3. Reduced Maintenance: New components mean fewer potential issues down the line, reducing the need for frequent maintenance.

4. Peace of Mind: Purchasing from a reputable supplier, such as GM, can provide peace of mind knowing that the components meet high-quality standards and come with a warranty.

1. Cost: New GM OEM components can be more expensive compared to aftermarket alternatives.

2. Lead Time: Ordering from GM or an authorized dealer may result in longer lead times due to production and shipping schedules.

3. Availability: Depending on the specific model year and engine configuration, availability of OEM components may be limited.

In conclusion, the decision to buy a new GM 136857 46-numbers flywheel and crankshaft kit for a 1942-1964 Chevy Corvette depends on your priorities, budget, and the importance you place on authenticity and performance. If you value historical accuracy and want the peace of mind that comes with OEM components, then the investment in a new flywheel and crankshaft may be worthwhile. However, if cost and lead time are significant concerns, you might consider exploring aftermarket alternatives.

Before making a decision, gather as much information as possible about your specific Corvette model, engine configuration, and availability of OEM components from GM or authorized dealers. Compare the prices and lead times of OEM and aftermarket alternatives, and consider the importance of authenticity and improved performance in your restoration project. Ultimately, make an informed decision based on your priorities and budget.

Details:

Key words 1949 1950 1951 1952 1953 1954 1957. New condition. This is made for a 7/16 bolt. You are purchasing 1 lot of 46 counting the one on box flywheel to crankshaft lock washers.

It fits the 6 cylinder GM engines from 1942 to 1964 including early cyl Corvettes.

part #: 136857 price

• $19.99

specifications addedclutch:

• for models: Corvette
• for makes: Chevy
• for years: 1942-1964
• brand: Gm
• part type: Flywheel Crankshaft Lock
• oe/oem part number: Lock Washer 7/16
• manufacturer part number: 136857
• vintage part: Yes
• country of origin: United States

seller addedclutch:

• city: Marshalltown, Iowa
• # reviews: 6288
• rating: 100.0%

payments addedclutch:

• credit card: Mastercard
• wallet: Google-pay
• other

returns addedclutch:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

general addedclutch:

• Transmission Drivetrain > Clutch Parts Kits > Additional Clutch Parts
• condition: New other see details

shipping addedclutch:

• transit: 3-5 Days
• cost: $5.89
• class: Standard
• service: USPS Ground Advantage
• type: Calculated
• carrier: USPS

offer addedclutch:

• availability: In Stock
• started: May 31, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1

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