The TH400 is an aluminum cased three speed automatic transmission that was produced by GM. It was introduced for the 1965 model year and made its debut in Cadillacs, and is respected for its durability and adaptability.

GM TH400 Automatic Transmission. The TH400 is an automatic shift, three-speed, longitudinally positioned transmission. It is widely regarded to be a supremely durable and legendary transmission. The TH400 is conservatively rated at 450 ft. lbs. of input torque. Aftermarket building techniques take it well past that figure. History

The GM TH400 transmission is a three-speed automatic transmission that was longitudinally positioned behind the engine. This placement is aimed at providing the best power ratio and durability for rear-wheel drive.

3 days ago · Find ATI TH400 Transmissions and get Free Shipping on Orders Over $109 at Summit Racing! ATI Performance Products TH400 transmissions offer great performance for 400 c.i.d. or larger big blocks.

If you need a high-performance transmission for racing, Th400 is a better option. Choose 700r4, if you need a transmission for street driving or you ride a dual-purpose car. The overdrive has a great advantage on that. Choose Th400, if you need a transmission for your trail rig or drives with the need for intense strength and pressure. 5. Usage

Known for its legendary durability, the TH400 is a 3-speed automatic transmission designed to handle high torque and demanding conditions, ideal for applications like off-roading, drag racing, and heavy-duty towing. Tailored for drivers who demand versatility and power, our SportMonster TH400 transmissions deliver enhanced performance and ...

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ATI's Turbo 400 Drag Racing Transmission. Now available with the award winning ATI T400 SFI Certified SuperCase. 2 and 3 speed versions available with many gear set ratios to choose from. ATI has T400 street rod and drag race transmssions for vehicles making 600 horsepower to …

Nov 20, 2007 · Rossler HP Trans, heard they are worth the $$. A TH400 is a 40 year old trans and any fairly confident shop can easily rebuild yours. I had my original TH400 built by a local shop 6 years ago for my 490 HP 454 and it has gone 17,000+ miles and 5 years of drag racing and it has no issues. It costed $600 + 2400 B&M convertor.

The TH400 is a venerable transmission that has its roots in mid-century automotive tradition but has since been modified for modern use. It is an automatic shift, positioned longitudinally behind the engine for the best power ratio and durability for rear-wheel drive.