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

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

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

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Learn how to install a side detent shifter in a 1969 Chevy C10.

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Small Block and Big Block Chevy Engine Flexplate Guide

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.

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

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This new steel bellhousing from Speedway Motors is made for everyone who wants to run three pedals without spending a fortune or relying on a crusty original.

Speedway Chevy Engine to Chevy Transmission Steel Bellhousing

The 1964 Corvette L79 327 is legendary, learn more about this storied engine and what you need to build a clone.

Chevy L79 327 Engine I History, Specs, & Build Ideas

Engine Family Facets

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Buick Chevy Inline Four TH350 Transmissions

Buick Chevy Inline Four TH350 Transmissions | Speedway Motors

Shop Buick Chevy Inline Four TH350 Transmissions and get Free Shipping on orders over $199 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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Buick Chevy Inline Four TH350 Transmissions

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Department

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Speedway Motors Chevy TH350 Automatic Transmission

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

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