Twisted Punisher™ Ford C6 Small Block Performance Transmission | 650 HP

550–650 HP | 650 LB-FT | 2500–2800 Stall Converter Included

Our Twisted Punisher™ Ford C6 is built in-house for aggressive small-block Ford street/strip applications making up to 650 HP and 650 lb-ft of torque.

The Punisher steps up from our Pro C6 with increased clutch capacity, a 300M billet input shaft, upgraded drum assemblies, hardened drive shell, heavy-duty reverse hub, and billet intermediate servo.

Built for high-performance small-block Fords, stroker engines, sticky tires, hard launches, and properly matched nitrous or boosted combinations.

Build Includes

• Increased-capacity heavy-duty performance clutch packs
• Kolene performance steels
• New heavy-duty carbon performance intermediate band
• 300M hardened billet input shaft — standard
• High-capacity five-clutch direct (third-gear) drum assembly
• Heavy-duty forward drum assembly
• Hardened drive shell
• Heavy-duty reverse hub
• Billet intermediate servo
• Heavy-duty BorgWarner low one-way roller clutch assembly
• Complete new bushing kit
• Complete new thrust washer kit
• High-capacity remanufactured pump assembly
• TransGo 67-1&2 Reprogramming Kit with Gear Command
• Valve body rebuilt and calibrated for increased line pressure and firm street/strip shifts
• High-rev performance governor calibration
• New vacuum modulator
• New transmission filter
• New gaskets, seals, and sealing rings

Pump & Valve Body — Modified & Updated the Twisted Torque™ Way.

Torque Converter

Custom-built 2500–2800 RPM stall performance torque converter included.

Converter stall is selected for your combination based on:

• Engine horsepower and torque
• Camshaft specifications
• Rear gear ratio and tire size
• Vehicle weight
• Intended street or strip use

Higher-stall converters and billet-cover upgrades are available.

Nitrous, turbocharged, supercharged, and transbrake applications require a build review to confirm converter construction and transmission requirements.

Optional Performance Upgrades

• Higher-stall performance torque converters
• Billet-cover performance converter
• C6 wide-ratio gear set — 2.71 first / 1.54 second
• Deep aluminum transmission pan
• Additional race-oriented upgrades available upon request

C6 Transmission Specifications

• Transmission: Ford C6
• Type: Three-speed automatic
• First gear: 2.46:1
• Second gear: 1.46:1
• Third gear: 1.00:1
• Torque converter: Non-lockup
• Overdrive: No
• Bellhousing: Integral small-block Ford pattern
• Shift operation: Automatic with TransGo Gear Command calibration

Engine Applications

Built for the small-block Ford bellhousing pattern used on:

• 289 V8: Six-bolt blocks only
• 302 / 5.0L Windsor V8
• 351W / 5.8L Windsor V8
• 351C / 5.8L Cleveland V8

The 351 Windsor and 351 Cleveland share the applicable small-block bellhousing pattern. Most 351M and 400 engines use a different pattern.

Verify flexplate balance, tooth count, converter bolt pattern, and crankshaft pilot before ordering.

Vehicle Applications

Built to order for properly matched small-block C6 applications, including:

• Ford Mustang
• Mercury Cougar
• Ford Fairlane and Torino
• Ford Ranchero
• Ford F-Series pickups
• Ford Bronco
• Ford Econoline vans
• Custom street rods, muscle cars, and restomods

Fitment depends on the vehicle year, engine, original transmission, and drivetrain configuration.

Confirm your application before ordering.

Custom Builds & Transmission Swaps

Building a stroker Windsor, high-compression Cleveland, nitrous street car, or boosted small-block Ford?

We can help match the C6 and converter to your engine and intended use.

Conversions from a C4, FMX, or manual transmission may require changes to the crossmember, driveshaft, shifter linkage, kickdown linkage, speedometer connection, and exhaust clearance.

For 4WD applications, provide your transfer-case model so we can confirm the required output shaft and adapter configuration.

Cooling & Installation

An external stacked-plate transmission cooler is required for this build. Cooler capacity must match vehicle weight, engine output, converter stall, and intended use.

• Flush or replace the existing cooler and transmission lines.
• Verify proper cooler flow before operating the transmission.
• Connect the vacuum modulator to full manifold vacuum.
• Verify kickdown linkage operation and adjustment where applicable.
• Follow the supplied fluid, torque converter installation, and break-in instructions.

Questions About Your Build?

Tell us your engine, horsepower, cam specs, rear gears, tire size, and how you plan to use the vehicle. We'll help match the transmission and converter to your application.

Twisted Torque Inc.

833-858-9612

sales@twistedtorque.com