Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Transmission Interchange List Chevy, Ford, Mopar V8 Compatibility

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Gen III/IV LS Engine ID Guide

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

LS Swap Guide: GM 3 Speed / 4 Speed Parts List

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Replacing GM Rear End Spherical Bushings

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

GM Rally Wheels

Follow along as we install a Pete Jackson Noisy Gear Drive on a Chevy 454. Learn about the installation process from Speedway Motors Street Tech Kevin.

Installing a Pete Jackson Gear Drive On a Chevy 454

Chevy LS engines get Engine Code as Top Category

Engine Family Facets

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GM S-Series LS Chevy 2004R Parts

GM S-Series LS Chevy 2004R Parts | Speedway Motors

Shop GM S-Series LS Chevy 2004R Parts and get Free Shipping on orders over $175 at Speedway Motors.

LS Crankshaft TH350/TH400/700R4 Torque Converter Adapter Sleeve

Sold in Quantity

MFG. Part #

2004R, 4L60E, 700R4, Powerglide, TH350, TH400

Universal GM Transmission Crossmembers with Adjustable Mount Kit

Material Type

Finish

Tube O.D.

Overall Length

Transmission Mount Included

TorqLink™ 73-87 C10 Square Body Transmission Crossmember

Color

Centerline of Holes

Notes

Many Transmissions, 33" Overall Length, Steel, Black

Gen 3 LS to TH350/700R4/Powerglide Transmission Adapter Kit

Rear Main Seal Style

Engine Balance

Tooth Count

SFI Rating

Safety Rating

Crankshaft Bolt Hole Count

Dual Pattern

Torque Converter Bolt Circle

2004R, 700R4, Powerglide, TH350, 168 Tooth Count, Steel

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GM S-Series LS Chevy 2004R Parts

Category

Part

Brand

Availability

Discounts

Engine Code

Engine Version

Displacement

Platform

Price

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Products

LS Crankshaft TH350/TH400/700R4 Torque Converter Adapter Sleeve

Universal GM Transmission Crossmembers with Adjustable Mount Kit

TorqLink™ 73-87 C10 Square Body Transmission Crossmember

Gen 3 LS to TH350/700R4/Powerglide Transmission Adapter Kit