This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

How to Identify GM Transmissions | 700R4, TH350, 4L60, TH400, 4L80e, Powerglide, & More

Uncover the secrets behind the iconic C3 Corvette! From design to development, discover what made this classic  a legend.

Top 10 Secrets of the C3 Corvette | General Motors R&D Lore

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

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

How to Adapt LS Engine to 700R4 or Turbo 350 Transmissions

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

Transmission Replacement on a 55 Chevy

Chevy LS engines get Engine Code as Top Category

Engine Family Facets

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Corvette C3 LSX 4L65E Transmission Parts

Corvette C3 LSX 4L65E Transmission Parts | Speedway Motors

Shop Corvette C3 LSX 4L65E Transmission Parts and get Free Shipping on orders over $175 at Speedway Motors.

Corvette C3 LSX 4L65E Transmission Parts

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Universal GM Transmission Crossmembers with Adjustable Mount Kit