1. Automatic Transmissions Products
  2. sku: 23823524785491711
  3. JEGS 83522

JEGS 83522 High Flexplate Bolts Gm Iv Ls Engines 889944314585 Iii/iv M11 1.5

83522 Jegs High-strength Flexplate Bolts Fits Gm Gen Iii/iv Ls Engines M11 X 1.5

( Brand: Jegs ), ( Manufacturer Part Number: 83522 ), ( Part Type: Bolt Engine ), ( Country Of Origin: Chn ), ( UPC: 889944314585 )

Review JEGS High strength Flexplate Bolts Gm Gen Iii/iv Ls Engines M11 1.5

The **83522 High-Strength Flexplate Bolts for GM Gen III/IV LS Engines (M11 x 1.5)** are a critical, high-performance replacement for the stock bolts used in the flexplate assembly of Chevrolet s legendary LS-series engines, including the LS1, LS2, LS3, LS6, and LS7, as well as their variants in trucks, SUVs, and performance applications. Engineered to meet or exceed OEM specifications, these bolts are forged from **Grade 8.8 or higher alloy steel**, ensuring exceptional tensile strength, fatigue resistance, and durability under extreme torque loads making them ideal for high-performance builds, drag racing, street rods, and heavy-duty applications where stock bolts may fail under prolonged stress or high RPM conditions. Each bolt features a **fine-threaded M11 x 1.5 pitch**, precisely matching the threading of the flexplate s mounting holes, while the **1.5-inch shank length** provides optimal engagement depth into the flexplate s bore, preventing loosening or stripping under dynamic loads. The bolts are **heat-treated and case-hardened** to resist galling and wear, a common issue with softer, lower-grade fasteners, ensuring a secure, vibration-proof connection between the flexplate and crankshaft. Designed for **torque-to-yield performance**, these bolts are engineered to stretch slightly under load, distributing stress evenly and preventing catastrophic failure unlike standard bolts that may snap or strip under excessive strain. Whether you re rebuilding a stock engine for reliability, upgrading a high-mileage LS engine, or preparing a supercharged or turbocharged application, these bolts offer the strength and precision required to maintain critical alignment and power transfer. Their **black oxide finish** not only resists corrosion but also provides a professional look, making them a seamless fit for both stock and aftermarket flexplates. For serious builders who demand nothing less than the best, these high-strength bolts are an indispensable upgrade, ensuring long-term reliability and peace of mind in even the most demanding driving conditions.

### **Pros and Cons of Buying 83522 High-Strength Flexplate Bolts for GM Gen III/IV LS Engines (M11 1.5")**

#### **Pros:**

1. **Enhanced Strength and Durability** These bolts are designed to withstand higher torque and stress compared to standard bolts, reducing the risk of loosening or failure under heavy loads, especially in high-performance or modified engines.

2. **Prevents Flexplate Warping** Properly torqued high-strength bolts help maintain the flexplate s alignment, preventing vibration-induced warping that can lead to clutch or transmission issues.

3. **Compatibility with LS Engines** Specifically engineered for GM Gen III/IV LS engines (including the M11 1.5" bolt pattern), ensuring a proper fit without modification.

4. **Extended Engine Life** By securing the flexplate properly, these bolts help reduce wear on the flywheel, clutch, and transmission components, contributing to long-term reliability.

5. **Easy Installation** Designed for straightforward replacement, often requiring only a torque wrench and basic tools, making them accessible for DIY mechanics.

6. **Cost-Effective Upgrade** Compared to full flexplate replacements or transmission overhauls caused by bolt failure, these bolts offer a low-cost preventive measure.

7. **Aftermarket Support** Widely available from reputable manufacturers, ensuring quality and availability for future maintenance.

#### **Cons:**

1. **Higher Upfront Cost** Compared to standard bolts, high-strength bolts are more expensive, though the investment is justified by their performance benefits.

2. **Specialized Tools Required** Some high-strength bolts may require a torque wrench capable of precise measurements (e.g., 100-120 ft-lbs for LS engines), which not all mechanics or DIYers possess.

3. **Potential for Over-Tightening** If not torqued correctly, these bolts can strip threads or damage the flexplate, so precise application is critical.

4. **Limited Use in Stock Applications** For stock engines running under normal conditions, standard bolts may suffice, making high-strength bolts an unnecessary upgrade unless modifying the vehicle.

5. **Mixed Quality Among Brands** Some aftermarket brands may cut corners on material or threading, so purchasing from trusted manufacturers (e.g., ARP, Megasquirt, or reputable OEM replacements) is advisable.

6. **Time-Consuming Replacement** Removing and reinstalling the flexplate requires disassembling the transmission, which can be labor-intensive for inexperienced mechanics.

7. **Not a Permanent Fix for Underlying Issues** If the flexplate itself is damaged or warped, replacing just the bolts won t resolve deeper problems; a full flexplate replacement may be needed.

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### **Conclusion:**

High-strength flexplate bolts (83522 M11 1.5") are a **highly recommended upgrade** for LS engine applications, particularly in high-performance, modified, or heavily driven vehicles. They provide critical protection against bolt failure, flexplate warping, and transmission issues, ultimately extending the life of the drivetrain. However, they are **not essential** for stock engines running under normal conditions, where standard bolts may be sufficient.

For most enthusiasts and performance-focused drivers, the **benefits outweigh the costs**, making these bolts a worthwhile investment. The key is ensuring proper installation with the correct torque specifications and sourcing bolts from a reliable manufacturer.

### **Recommendation:**

- **Buy high-strength bolts** if you are modifying your engine, experiencing clutch or transmission issues, or want added peace of mind for high-mileage or aggressive driving.

- **Use standard bolts** if your engine is stock and runs reliably without flexplate concerns.

- **Always follow the manufacturer s torque specifications** (typically 100-120 ft-lbs for LS engines) to avoid damage.

- **Prioritize quality brands** (e.g., ARP, Megasquirt, or genuine GM replacements) to ensure longevity and performance.

For most LS engine applications, upgrading to high-strength bolts is a **smart preventive measure** that pays off in reliability and longevity.

Details:

part #: 83522 price

  • $19.99

specifications autotransmissionsgo:

  • brand: Jegs
  • mpn: 83522
  • part type: Bolt Engine
  • country of origin: Chn
  • upc: 889944314585

shipping autotransmissionsgo:

  • cost: $15.99
  • service: Standard
  • class: Standard
  • type: Fixed
  • transit: 10-17 Days

offer autotransmissionsgo:

  • started: May 14, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1

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  • credit card: Diners-club
  • wallet: Google-pay

seller autotransmissionsgo:

  • # reviews: 629811
  • city: , Ohio
  • rating: 99.5%

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

general autotransmissionsgo:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
part type: bolt engine, country of origin: chn,
category: auto parts > car truck parts accessories > transmission drivetrain > automatic transmission, sku: 23823524785491711,
Jegs 83522 Is Similar To:
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1 offer $19.99 USD
  • New. Offer #1 priced at $19.99 + $15.99 shipping estimate = $35.98* total. Flexplate Bolts, Fits GM GEN III/IV LS Engines, Tensile Strength: 200, 000 PSI, SCM-4140 Chromoly Steel, Heat Treated, Threads: M11 x 1.5, Under Head Length (UHL): 0.880 in., 12-Point Head, Set of 6 JEGS High-Strength Flexplate Bolts Fits GM GEN III/IV LS Engines M11 x 1.5 w/12-Point Head.+$15.99 shipping

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