🔥 Twisted Street™ 200-4R Performance Overdrive Transmission

Rated 350–450 HP

Classic Muscle • G-Bodies • Restomods • Street Rods

The Twisted Street™ 200-4R is our upgraded street build for customers who want to keep the drivability and overdrive of the original 200-4R while adding the updates needed for a mild performance application.

This is a stock-based upgraded transmission, not a race build. We start with the factory 200-4R design, completely remanufacture it, address common factory wear and hydraulic issues, upgrade the friction material and add a mild shift correction package.

The result is a dependable street 200-4R with clean, positive shifts and 0.67 overdrive for comfortable highway cruising.

Rated 350–450 HP depending on vehicle weight, engine torque, tire, gearing and intended use.

Transmission Only. New 1650 RPM Stock-Stall Lock-Up Torque Converter Included. Installation and conversion parts sold separately.

🔧 TWISTED STREET™ BUILD

PREMIUM HIGH-ENERGY FRICTIONS

The factory clutch configuration is retained while the friction material is upgraded for improved holding capacity and durability.

• Premium high-energy friction clutches
• New steels
• Clutch packs properly clearanced during assembly
• New internal seals and sealing rings

This is a street build, so we retain the proven factory clutch configuration rather than adding unnecessary race components.

MILD SHIFT CORRECTION PACKAGE

Every Twisted Street™ 200-4R receives a Stage 1 mild TransGo or Superior shift correction kit.

This package is used to address common factory hydraulic and shift-control issues while maintaining good street manners.

Updates provide:

• Cleaner, more positive shifts
• Improved pressure control
• Improved clutch and band apply
• Better TV pressure response
• Improved overall shift quality

The transmission retains normal automatic operation and comfortable street driving characteristics.

REBUILT & UPDATED PUMP

The pump is completely disassembled, cleaned, inspected and rebuilt.

Street build updates include:

• New pump bushing
• Hardened pump rings
• Pump vanes inspected and replaced as required
• Pump slide and related components inspected
• Pressure regulator and boost circuits inspected and corrected as required
• Pump clearances checked during assembly

The pump is set up to provide reliable pressure and proper pressure rise without the excessive line pressure used in more aggressive performance builds.

VALVE BODY & ACCUMULATOR SYSTEM

The factory valve body is completely disassembled, cleaned and inspected.

Known wear areas are checked and corrected as needed, and the valve body is updated according to the TransGo or Superior Street calibration.

The accumulator system is inspected and serviced as part of the build to maintain proper shift timing and clutch and band apply.

INTERMEDIATE BAND & SERVO

The intermediate band is replaced during the rebuild.

The factory-style servo system is inspected, serviced and properly set up for the mild Street calibration.

Higher-capacity billet servos and more aggressive servo combinations are reserved for our higher horsepower builds.

TV SYSTEM CHECK

Proper TV operation is critical to the life of a 200-4R.

The TV and boost circuits are inspected during the build for proper operation and pressure rise.

Correct TV cable adjustment and throttle geometry are required during installation.

The TV cable on a 200-4R controls transmission line pressure and shift operation. Incorrect cable adjustment or throttle geometry can quickly damage the transmission.

COMPLETE INTERNAL REMANUFACTURE

Every Twisted Street™ 200-4R is completely torn down, cleaned and inspected.

The build includes:

• New friction clutches
• New steels
• Complete bushing kit
• New sealing rings
• New lip seals
• New gaskets and seals
• New filter
• Pump rebuilt and updated
• Sprags and one-way clutches inspected and replaced as required
• Bearings and thrust components inspected and replaced as required
• Factory hard parts inspected for wear or damage
• Clutch clearances checked and set
• Internal endplay checked and set

Any factory hard part that does not meet our specifications is replaced during the build.

🔒 1650 RPM LOCK-UP TORQUE CONVERTER INCLUDED

Every Twisted Street™ 200-4R includes a new stock-stall lock-up torque converter with approximately 1650 RPM stall.

The stock-stall converter keeps the Street package easy to drive in traffic, provides good low-speed manners and allows converter lock-up for highway cruising.

Higher-stall and performance converter options are available separately for applications that require them.

🔧 DOING A 200-4R CONVERSION?

Swapping your classic GM from a TH350, TH400 or another transmission to overdrive?

We also offer complete 200-4R Conversion Packages that pair the transmission with the supporting components needed for an overdrive conversion.

Depending on the vehicle and application, a conversion may require:

• TV cable and correct throttle/carburetor geometry
• Lock-up wiring
• Transmission cooler and related components
• Crossmember or transmission mount changes
• Speedometer setup
• Shifter or linkage components

The 200-4R is a popular choice for classic GM conversions because it gives you a 0.67 overdrive while retaining a compact transmission package.

👉 SHOP OUR 200-4R CONVERSION PACKAGES

Conversion packages are available in Street, Pro, Punisher and Executioner configurations.

Not sure what your swap needs? Contact us before ordering and we'll help determine the correct package for your vehicle.

200-4R GEAR RATIOS

1st Gear: 2.74

2nd Gear: 1.57

3rd Gear: 1.00

4th Gear: 0.67 Overdrive

The 200-4R combines a 2.74 first gear with a 0.67 overdrive, making it a popular choice for classic GM vehicles that need better highway cruising without giving up good off-the-line gearing.

COMMON APPLICATIONS

The 200-4R's factory multi-pattern bellhousing makes it a popular choice for many Chevrolet, Buick, Oldsmobile and Pontiac applications.

Common applications and swaps include:

• Small Block Chevy
• Big Block Chevy
• Buick Grand National
• Monte Carlo SS
• Malibu
• El Camino
• Cutlass
• 442
• Regal
• GTO
• LeMans
• Firebird
• Street Rods
• Restomods
• LS swaps with the proper supporting components

Fitment must be verified before ordering.

BUILT TO ORDER

Before your transmission is built, we verify the vehicle and engine combination.

Be prepared to provide:

• Year / Make / Model
• Engine
• Estimated horsepower
• Rear gear ratio
• Tire size
• Naturally aspirated or power adder
• Intended use

This information helps us verify that the Twisted Street™ 200-4R is the correct build for your combination.

WHAT'S INCLUDED

✔ Twisted Street™ 200-4R Transmission

✔ Rated 350–450 HP

✔ Complete Internal Remanufacture

✔ Premium High-Energy Frictions

✔ New Steels

✔ Stage 1 Mild TransGo or Superior Shift Kit

✔ Rebuilt & Updated Pump Assembly

✔ Hardened Pump Rings

✔ Valve Body Inspected & Serviced

✔ Common Factory Hydraulic Issues Addressed

✔ TV / Pressure System Checked

✔ New Bushings, Seals & Filter

✔ Factory Hard Parts Inspected & Replaced as Required

✔ New 1650 RPM Stock-Stall Lock-Up Torque Converter

✔ Pressure Tested Before Shipping

✔ Technical Support

✔ Backed by Our Warranty

NEED MORE THAN A STREET BUILD?

🔥 TWISTED PRO™ 200-4R

Rated 500–550 HP

Our next step for higher-output street combinations. Pro adds increased holding capacity and upgraded components beyond the stock-based Street build.

💀 TWISTED PUNISHER™ 200-4R

Rated 550–650 HP

Built for serious street and street/strip combinations with additional clutch capacity, billet hard parts and higher-capacity hydraulic upgrades.

☠️ TWISTED EXECUTIONER™ 200-4R

Our highest-level 200-4R build for applications requiring competition-level hard parts and internal upgrades.