While everyone is looking for a 6.0 LS, don’t count out the original 5.7 LS1 engine for your next LS swap performance build

5.7 LS1 Engine Upgrades: Build Recipes for 400 HP-700+ HP

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

The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. Here's what you need to know about GM's famous 4-speed automatic.

700R4 Transmission Complete Guide | Diagrams, HP Ratings, FAQ

If you're ready to swap an LS engine into you '73-'87 Squarebody Chevy or GMC truck, here's a guide to get you started and a parts list to help you get everything you need for your swap.

Squarebody LS Swap Guide | 73-87 C10 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

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

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend

5.3 LS Build Combinations: Recipes for 400-700+ HP

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

The 1964 Corvette L76 327 is legendary, learn more about this storied engine and what you need to build a clone.

Corvette L76 327 Engine History, Specs, and Build Ideas

Building GM’s LQ4 6.0L Gen 3 LS engine for various power levels is easy with the right performance parts recipe.

LQ4 Engine Build Upgrades | Recipes for 500HP - 1,000HP

Chevy LS engines get Engine Code as Top Category

Engine Family Facets

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Speedway Motors Corvette C1 5.3 LS 700R4 Parts

Speedway Motors Corvette C1 5.3 LS 700R4 Parts | Speedway Motors

Shop Speedway Motors Corvette C1 5.3 LS 700R4 Parts and get Free Shipping on orders over $175 at Speedway Motors.

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

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MFG. Part #

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

LS1/LS2/LS6/5.3/6.0 to TH350/700R4/4L60 Adapter Flexplate

Material Type

Rear Main Seal Style

Engine Balance

Finish

Tooth Count

Outside Diameter

SFI Rating

Safety Rating

Crankshaft Bolt Hole Count

Dual Pattern

Torque Converter Bolt Circle

Notes

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

Universal GM Transmission Crossmembers with Adjustable Mount Kit

Tube O.D.

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

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Speedway Motors Corvette C1 5.3 LS 700R4 Parts

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

LS1/LS2/LS6/5.3/6.0 to TH350/700R4/4L60 Adapter Flexplate

Universal GM Transmission Crossmembers with Adjustable Mount Kit

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