The Turbo 400 was introduced in 1964 in Buick and Cadillac cars and in Chevrolet and Oldsmobile cars the following year. An innovative variable pitch stator was available in the 1965-1967 cars that could essentially vary the characteristics of the torque converter.
What years did Chevy use the TH400 transmission?
Oldsmobile and Chevrolet began using the TH-400 in 1965, and a variable-pitch torque converter was added. These units are not the best candidates for exchange. This variable-pitch version of the TH-400 was only used from 1965 to mid-1967. Later units used a fixed-pitch converter.
Are Turbo 400 and TH400 the same?
They are, for the most part, interchangeable on the same vehicles; however, you would normally find the TH400 in larger engine applications because they are able to function more reliably at higher engine rpms.
How do I know if I have a TH400?
Another quick way to identify a Turbo 400 is to look at the kick-down mechanism. Unlike the Turbo 350, instead of a “kick down” cable, it uses an electrical slide switch, which is controlled by the throttle linkage. Generally, in ’68-’71 vehicles, the switch is located on the carburetor.
What cars had a Turbo 400? – Related Questions
Which is better TH400 or 4L80E?
Though 4L80E race transmissions are quite similar to TH400 in terms of strength and parts used, however, there are differences, such as the added overdrive gear, advanced electronic controls, and a lock-up torque converter. 4L80E transmissions have nearly 25% overdrive and are 4 inches longer than the TH400.
Which is better Turbo 350 or Turbo 400?
1. Is there a big difference between a Turbo 350 and Turbo 400 – and which one do I want? They are completely different transmissions. The Turbo 400 is larger, longer, and heavier than the Turbo 350 and was designed to live behind higher-torque applications such as big-blocks.
How do I know what Chevy transmission I have?
The easiest method of GM automatic transmission identification is to examine the transmission pan. New transmission designs came with new, unique pan shapes, and the general shape of the pan often paints a fairly clear picture of which automatic transmission you are dealing with.
Can I look up my transmission by VIN number?
Simply write the VIN number down and you can then ask a dealership service department, auto repair shop, or auto parts retailer to help you identify the transmission. They’ll easily be able to find the specs by plugging the VIN number into the computer.
What is the difference between a Turbo 400 and a 700R4?
The 700R4 is an improved and upgraded model compared to its predecessors-TH350 and TH400. The GM THM700R4 is a 4-speed automatic-shift overdrive transmission installed longitudinally (front to back) over vehicle chasses. The 700R4’s performance is comparable to the GM 200-4R but sports a lengthier transmission.
How do I know if my transmission is a TH350?
However, you can tell if it is a TH350 or TH400 depending on the transmission oil pan’s shape. If the pan is square in shape and looks five-sided due to a cut in one corner, then you are dealing with the TH350.
How much HP can a TH350 handle?
The Stage 1 TH350 is rated up to 450 hp. Those seeking something a little stronger can check out the Stage 2 version (PN PA35102) that holds 550 hp and retails for $1,500 with a real world street price of $1,175 from most vendors. Both transmissions come with a standard one-year warranty.
What cars have a TH350 transmission?
The Turbo 350 Transmission found excellent use in Pontiac Firebirds, GMC trucks, Chevrolet Camaros, Monte Carlo, and the Caprice. This transmission remarkably matches GM automobiles with small-block V-8s as well as the small Iron Duke 4-cylinder models, the block-block 396 V-8s, and V-6s.
Is a Turbo 350 and a TH350 the same?
The Turbo 350 was frequently mated with small-block Chevy engines like the 327 and 350 V-8s. The Turbo Hydramatic 350, also known as the TH350, is widely regarded as one of the best three-speed automatic transmissions ever created.
What transmission can replace a TH400?
The 4L60 transmission as been around log enough to prove itself, and it is a shoe-in to replace a Turbo 350 or 400, plus it cam be found in a non-electronic controlled version that’ll work behind a Chevy motor in almost any old truck.
How much power can a Turbo 400 handle?
In general, the Turbo 400 can be built to handle as much as 500 hp and tow up to 13,000-pound trailers-although not necessarily daily.
What does TH400 stand for?
The TH400 or Turbo 400 is a good transmission that was used in several cars years ago. This popular transmission was found in GM’s cars, as well as, Rolls-Royces, Jeeps, Jaguars, Ferraris, etc.
Does TH400 have overdrive?
But the TH350 and TH400 three-speed versions (and their two-speed Powerglide cousin) fall short when it comes to highway cruising. The reason for this is the conspicuous lack of an overdrive gear.
Whats the difference between a TH400 and a 4L60E?
Much to our surprise, the most significant difference between the TH400 and the 4l60E transmission is the first gear ratio — the 4L60E has a 3.06 first gear, 1.62 second, 1.00 third, and a . 70 overdrive. The TH400 and 4L80E both come with a 2.48 first gear, 1.48 second, and 1.00 third gear.
What is the best GM automatic transmission?
The 10L90E is by far the biggest and heaviest modern automatic transmission in GM history, but it’s also the strongest and offers amazing performance and economy when matched with a Gen V LT engine. This is part of the newest technology in the performance world.
What is the toughest transmission?
The Chrysler TorqueFlite A-727 (better known as just the ‘727’) is to this day one of the strongest automatic transmissions ever built.