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

Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. We’ll help you determine the correct flexplate for your Chevy engine in this buyer’s guide.

Small Block and Big Block Chevy Engine Flexplate Guide

Decode small block Chevy engine suffix codes and block casting numbers with our SBC decoding info guide. Learn how to find and decipher your small block Chevy engine codes quickly and easily!

Chevy Small Block Casting Numbers

Identify SBC heads using casting numbers, style tips, and year-by-year guides for your small block Chevy engine projects

Small Block Chevy Head Identification Guide | Casting Numbers Explained

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

Historic Chevy Performance Engines

Engine Family Facets

707063f6-5cf0-44d1-8e1f-49059e48addf

3fe4cfeb-d42e-4b60-a312-2940d324f962

77-84 GM C-Body Chevy 350 TH350 Automatic Transmissions

77-84 GM C-Body Chevy 350 TH350 Automatic Transmissions | Speedway Motors

Shop 77-84 GM C-Body Chevy 350 TH350 Automatic Transmissions and get Free Shipping on orders over $175 at Speedway Motors.

Speedway Motors Chevy TH350 Automatic Transmission

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Finish

Yoke Style

Input Shaft Spline Count

Flexplate Included

Dipstick Included

SFI Rating

Fluid Fill Location

Number of Gears

Flexplate Shield Built In

Lockup Compatible

Trans-Brake Included

Transmission Case Material

Transmission Dust Cover Included

Transmission Pan Material

Transmission Pan Style

Valve Body Style

Torque Converter Included

First Gear Ratio

Transmission Fluid Included

Transmission Pan Finish

Tailshaft Length

Transmission Cooler Included

Transmission Advertised Horsepower Rating

Notes

MFG. Part #

Transmission Fluid Type

TH350, Three Number of Gears, 6" Tailshaft Length

Buick/Olds/Pontiac TH350 Automatic Transmission, Up To 450 HP

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77-84 GM C-Body Chevy 350 TH350 Automatic Transmissions

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Speedway Motors Chevy TH350 Automatic Transmission

Buick/Olds/Pontiac TH350 Automatic Transmission, Up To 450 HP