Overview
Designed for GM LS Engines (Gen III / IV)
Direct-fit solution for LS-based applications, ensuring proper engagement between the crankshaft and flexplate.
High-Strength Alloy Steel Construction
Heat-treated for superior tensile strength and durability under high torque and rotational stress.
Precision Thread Engagement
Rolled threads provide smooth installation, accurate torque values, and consistent clamping force across all bolts.
12-Point Head for Easy Installation
Allows better tool access in tight spaces while delivering a clean, motorsport-inspired look.
Built for Performance & Reliability
Ideal for stock rebuilds, performance upgrades, and high-horsepower applications where drivetrain integrity is critical.
Your application
The right fit comes first.
Browse the compatible applications below, or check your exact vehicle before adding this product to your cart.
Inside the box
Know exactly what arrives.
Included components for this product.
| Qty | Component |
|---|---|
| 6 | Flexplate bolts |
| — | Assembly lubricant |
Engineering details
Small details. A secure connection.
The bolts pass through the flexplate and engage the crankshaft flange. Tightening creates the clamping load that holds the mounting faces together.
Heat-treated alloy steel.
Heat-treated alloy steel fasteners for the crankshaft-to-flexplate connection.
Rolled threads.
Rolled threads provide the threaded interface with the crankshaft flange.
12-point bolt heads.
The 12-point head design provides tool access for installation.
Before you begin
A good install starts here.
Review the instructions and any application-specific requirements before you begin.
Before you order
Which applications does this kit fit?
For Chevrolet Small Block Gen III / IV LS. Match the engine and original fastener configuration before ordering.
Is the flexplate included?
This is a flexplate fastener kit. The flexplate is not included. Match the kit to the specific engine and transmission assembly.
Where can I find the installation procedure?
Use the linked installation manual for this kit’s preparation, lubricant and tightening requirements.
How does the warranty work?
Review the warranty policy for coverage, eligibility, and claim requirements.
Read warranty termsRegister your warrantyCalifornia Proposition 65 warning
WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
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