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

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

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

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

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

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

Upgrading the Cooling System for a Small Block Chevy

We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. We'll also walk you through choosing the correct parts in order to make this installation a breeze!

Adapting Tremec's Popular T5 5-speed Manual to Ford's Flathead V8 Engine

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

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.

Alternator Bracket Install on a 454 Big Block Chevy

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

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Pontiac Lemans Manual Transmissions Gm Chevy V8 Small Block 305

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Pontiac LeMans Chevy 305 Automatic Transmissions

Pontiac LeMans Chevy 305 Automatic Transmissions | Speedway Motors

Shop Pontiac LeMans Chevy 305 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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Pontiac LeMans Chevy 305 Automatic Transmissions

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Brand

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Availability

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Engine Version

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Speedway Motors Chevy TH350 Automatic Transmission

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

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