Twisted Punisher™ Buick Grand National 200-4R Performance Transmission

1986–1987 Buick Grand National 3.8L Turbo

Rated Up to 650 HP

The Twisted Punisher™ Grand National 200-4R is built for higher-horsepower Turbo Buick street and street/strip combinations.

Billet forward drum/shaft, 7-clutch dual-fed direct, 3-clutch overdrive, BRF-type valve body with TransGo HD2-A calibration, Sonnax Super Hold servo, .500 TV boost system and upgraded pump and one-way components.

NEW 2300–2500 RPM Performance Lock-Up Torque Converter Included.

🔧 TWISTED PUNISHER™ GRAND NATIONAL BUILD

BILLET FORWARD DRUM & SHAFT

• Billet forward drum/shaft assembly
• 300M shaft
• Drum checked for runout before assembly
• Input shaft clearanced as required for billet drum installation

7-CLUTCH DIRECT

• 7-clutch direct pack
• High-energy performance frictions
• Performance steels
• Dual-fed direct clutch
• Direct clutch clearance set during assembly

3-CLUTCH OVERDRIVE

• 3-clutch OD conversion
• Modified/replacement OD piston and clutch stack
• 3 high-energy OD frictions
• Matching steels
• OD clutch clearance set during assembly

PERFORMANCE FRICTION PACKAGE

• High-energy forward clutches
• 7-clutch high-energy direct
• 3-clutch high-energy overdrive
• High-energy low/reverse and overrun frictions
• Performance steels
• Clutch clearances individually set

BRF-TYPE VALVE BODY / TRANSGO HD2-A

• BRF-type Grand National valve body
• TransGo 200-4R-HD2-A Reprogramming Kit
• Dual-feed 3rd/direct circuit
• Performance separator plate/orifice calibration
• Performance accumulator calibration
• Full automatic operation retained

SHIFT CALIBRATION

Choose your shift feel:

Mild • Medium • Firm • Wild

Specific WOT automatic shift RPM can also be requested. Governor calibration is set for the requested shift point and Turbo Buick combination.

SONNAX SUPER HOLD SERVO

• Sonnax Super Hold billet servo
• Wide high-energy intermediate band
• Billet band anchor
• Servo pin/travel set during assembly
• Band clearance checked and set
• Direct drum band surface inspected

BLUEPRINTED HIGH-PERFORMANCE PUMP

Pump configuration is selected for engine output and operating RPM.

• 10-vane or 13-vane performance pump configuration
• Hardened pump rings
• High-RPM pump ring package when required
• New pump bushing
• Pump vanes
• Updated pump slide spring
• Pump slide and pivot inspected
• Rotor and pump pocket inspected
• Pump clearances checked and set
• Hardened/heat-treated stator support

.500 TV BOOST SYSTEM

• .500 TV boost valve
• High-performance line-pressure calibration
• Pressure regulator valve and bore inspected
• Worn PR bore corrected with oversized Sonnax repair components when required

UPGRADED ONE-WAY COMPONENTS

• New OD roller clutch
• Upgraded low roller clutch
• Roller clutch races inspected
• Related one-way components checked during assembly

ROLLERIZED LOW CLUTCH SUPPORT

• Rollerized low clutch support
• Thrust clearance checked during assembly

BILLET FORWARD CLUTCH PISTON

• Billet aluminum forward clutch piston
• Forward clutch clearance set during assembly

HARD PART INSPECTION

In addition to the billet forward drum/shaft:

• Input shaft inspected and clearanced for billet drum
• Front and rear planetary assemblies inspected
• OD carrier inspected
• OD ring gear inspected
• Sun shell inspected
• Reaction components inspected
• Worn or damaged components replaced

DEEP-SUMP CAST ALUMINUM PAN

Punisher includes a deep-sump cast aluminum transmission pan with natural cast finish.

• Increased fluid capacity
• Cast aluminum construction
• Improved heat dissipation
• Natural cast finish

COMPLETE INTERNAL OVERHAUL

• Complete bushing kit
• New sealing rings
• New lip seals
• New gaskets and seals
• New filter
• Bearings and thrust components inspected/replaced as required
• Endplay checked and set
• Clutch clearances set
• Servo travel set
• Air checked during assembly
• Line pressure checked
• Final pressure test before shipping

2300–2500 RPM PERFORMANCE LOCK-UP CONVERTER

Includes a NEW 2300–2500 RPM performance lock-up torque converter.

Final stall is matched within the range based on the Turbo Buick combination.

GRAND NATIONAL APPLICATION

1986–1987 Buick Grand National

• 3.8L Turbo V6
• 200-4R automatic
• BRF-type valve body
• Lock-up converter
• High-performance street / street-strip
• Rated up to 650 HP

This listing is specifically for the 1986–1987 Buick Grand National application.

BUILT TO ORDER

Provide:

• Vehicle year
• Engine combination
• Estimated horsepower
• Boost level
• Turbo size
• Injector / fuel system setup
• Intercooler setup/modifications
• Engine modifications
• Rear gear ratio
• Rear tire size
• Vehicle weight, if significantly changed
• Cam / operating RPM range
• Shift feel: Mild / Medium / Firm / Wild
• Desired WOT shift RPM, if applicable
• Intended street / street-strip use

200-4R GEAR RATIOS

1st: 2.74

2nd: 1.57

3rd: 1.00

4th: 0.67 Overdrive

NEED MORE POWER?