Advance Adapters GM LS Adapter Flywheels 712500M-D

Name: Advance Adapters GM LS Adapter Flywheels
Brand: Advance Adapters
SKU: ADD-712500M-D
Price: 974.99 USD
Availability: OutOfStock
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Part Number: ADD-712500M-D

$974.99

Advance Adapters GM LS Adapter Flywheels

Flywheel, Pressure Plate, 0.400 in. Thicker, Chevy LS to Non-LS Transmission, Kit
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Advance Adapters GM LS Adapter Flywheels 712500M-D

ADD-712500M-D

Not Yet Reviewed

Part Number: ADD-712500M-D

Estimated Ship Date: Mar 10, 2027

$974.99

Overview

Applications

Q&A

Estimated Ship Date: Mar 10, 2027 Would you rather pick it up?

Overview

Brand:

Advance Adapters

Manufacturer's Part Number:

712500M-D

Part Type:

Clutch Kits

Product Line:

Advance Adapters GM LS Adapter Flywheels

Summit Racing Part Number:

ADD-712500M-D

Item Number:

5254443

Clutch Usage:

Stock replacement

Flywheel Included:

Yes

Disc Diameter (in.):

11.000 in.

Disc Diameter (mm):

279mm

Pressure Plate Style:

Diaphragm

Throwout Bearing Included:

Yes

Throwout Bearing Style:

Standard

Alignment Tool Included:

Pilot Bushing Included:

Yes

Pilot Bushing Material:

Steel

Flywheel Material:

Steel

Ring Gear Tooth Quantity:

168-tooth

Flywheel Bolt Quantity:

Engine Balance:

Internal

Counterweight Assist:

Mounting Hardware Included:

Yes

Quantity:

Sold as a kit.

Notes:

Clutch disc sold separately. Flywheel is 0.400 in. thicker to fit older, non-LS transmissions.

Advance Adapters GM LS Adapter Flywheels

Advance Adapters GM LS adapter flywheels are designed to bridge the gap between modern GM LS engines (Gen III/IV) and older GM or popular aftermarket manual transmissions. These specialized replacements feature a unique offset and bolt pattern to accommodate the LS crank's depth, ensuring full clutch disc engagement for conversions in Jeeps, trucks, and classic vehicles where you want an LS engine with a manual stick shift.

Additional details:

* Corrects crank depth: LS engines have a crankshaft that sits slightly further in than older small blocks, so these flywheels are thicker (or designed to offset) to position the clutch disc correctly for proper input shaft engagement
* Specific bolt patterns: They feature the correct bolt pattern for the LS engine's crank and are designed for specific pressure plates, often for 11 in. clutches
* Internal balancing: LS engines are internally balanced, which is different from older externally balanced V8s, so the flywheel itself is designed for the LS platform
* Lightweight and strong: Made from billet steel, designed for durability and sometimes relieved to maintain a specific weight
* Why you need one: When putting an LS engine into an older vehicle or swapping from an automatic to a manual transmission, you can't just use a standard flywheel. You need an Advance Adapters flywheel to make the clutch system function correctly and fully engage the transmission's input shaft.