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Ford C4/C6

 Transmissions
 Components
   
 
If you would like a specific recommendation from a TCI product specialist based on your vehicle specs, click here.

Torque Converters

Triple Tested Quality

TCI® strives to produce the best torque converters in the industry. Part of the process involves ensuring that each unit is built to spec. Triple TestedRegardless of what category or price level it may fall into, every TCI® torque converter is Triple Tested during assembly.

Once all the prep work on the component parts has been completed, the impeller is welded to the front cover. Immediately following this process, a pair of dial indicators are employed on a rotating table to verify that the impeller body and pump drive hub remain true.

Each unit is then pressurized and subjected to a leak test to confirm the integrity of all the weld seams. Lastly, each unit is computer balanced to reduce annoying and potentially damaging drivetrain vibrations that would occur from an unbalanced torque converter. That's Triple Tested so you can be confident you're getting a torque converter that's ready to roll.


  Torque Converter Application Sizzler® Saturday Night Special® Breakaway® 11" StreetFighter® 10" Super StreetFighter™ Ultimate StreetFighter™
Ford C-6 C6 1971-91, 289, 302, 351, 400,
429, 460 cid with 1.375" crank pilot*
441638
441600
441000

441001
1
441300

441301
1
441322

441302
1
441303 1
C6 1971-91, with 1.250" crank pilot*   441612
  441312
441321 1
 
C6 1966-84 332, 360, 390, 406, 427,
428, (1967-71 429) cid with 1.850
crank pilot
  441700
441100

441101
1
442100

442101
1
442122

442102
1
 
Ford C-4 C4 1966-69 24-spline, 10-1/2" B.P.,
1.375" crank pilot (dipstick goes
into trans. case)
  450600
451000
451400

451401
1
451422
 
C4 1970 & later 26-spline, 10-1/2"
B.P., 1.375" crank pilot
(dipstick goes into trans. case)

450738

 

450700
451100

451101
2
451500

451501
2

451502
1

451505
3
451522

451503
1
451506 1
C4 1966-69 24-spline, 11.4" B.P.,
1.375" crank pilot
(dipstick goes into trans. pan)
  450800
451200
451700
451722
 
C4 1970 & later 26-spline, 11-7/16"
B.P., 1.375"
crank pilot
(dipstick goes into trans. pan)
  450900
451300

451301
1
451900

451901
1
451922

45190
2 1
451903 1
1 With heavy-duty front anti-ballooning plate for nitrous applications
2 Mustang II 9-3/8" bolt pattern
3 With 11-7/16" bolt pattern, but retains case fill overall length
* Note: C6 1969-71 429 & 460 could have 1.250" or 1.850" pilot

Transmissions
For additional truck applications click here.

Triple Tested Quality

TCI® goes the extra mile to ensure your transmission is superior in both form and function. Beginning with a careful inspection of the transmission case and components that will be used, we replace stock parts with high performance bands and components where applicable. We increase fluid flow, lubrication system and thrust capacity. Problematic hard parts are replaced with stronger components, many of which we fabricate ourselves at our in-house machining centers. Valve bodies are completely remanufactured and 100% tested prior to installation. Finally, each and every TCI® StreetFighter® transmission must pass both a static Triple Testedhydraulic pressure test during assembly and a final dyno test prior to shipping. That's Triple Tested so you can be confident you're getting a transmission that's ready to rock.








  Applications Engine Size Sizzler® StreetFighter® Super StreetFighter™
Ford C-6 C6 1966 & later, FE, 13-1/2" tailshaft 332, 352, 390, 406, 427, 428 411038
411000

411010
1
411005
C6 1966 & later, 13-1/2" tailshaft 351M, 400, 429, 460 411238
411200
411205
C6 1966 & later, 13-1/2" tailshaft 289, 302, 351C, 351W 411438
411400
 
Ford C-4 C4 1970-82 (dipstick goes into trans. case),
small bellhousing, 26-spline input shaft
289-351 511238
511200

511210
1
511205
C4 1970-82 (dipstick goes into trans. pan),
large bellhousing, 26-spline input shaft
289-351 511638
511600

511610
1
511605

1 With special 2.75 low gear planetary installed

Ford C4 Transmission Notes:

1965-69 applications can use the TCI® StreetFighter® transmission by using a 1970 & later 26-spline torque converter with the transmission.
All C4 transmissions are shipped minus bellhousing due to many applications. Contact us for assistance if you require a bellhousing prior to ordering.
See additional C4 bellhousing information here.

Ford C6 Transmission Notes:

When ordering please reference if existing transmission has a shift lever which points up or down.

Transmission Valve Bodies
  Application StreetFighter® Series Full Manual Series Trans-Brake Series
Ford C-6 Ford C6, 1966 & later 421100
  421500 2,3
Ford C6, 1967 & later   421000 2
421500 2,3
Ford C-4 Ford C4, 1970 & later 522100 1
521000 2
521500 2,4
Ford C4, 1971 & later     521500 2,4

1 Except Falcon
2 Reverse shift pattern
3 1969 and later
4 Push-in style modulator only

Service Kits and Valve Body Kits
  Application Racing Overhaul Kit Master Racing Overhaul Kit Pro Super Kit Valve Body Performance Improver Kit Trans-Scat® Valve Body Kit Racing Filter and Pan Gasket
Ford C-6 C6, 1966-'76 428600
449000

449015
1
448800
426200
360000
428500

428501
4
C6, 1977-later 428700
449100

449115 1
448900
426200
360000
428500

428501
4
Ford C-4 C4, 1965-'66 N/A N/A N/A 526000
N/A 528400
C4, 1967-'69 528600
529000
528800
526100
N/A 528400
C4, 1970-later 528700
529500

529515
1
528900
526200
260100
528500

528550 3

 
 

1 Special high horsepower kit with HD Red clutches
2 Kit does not include band
3 Must be used in conjunction with a 518000 cast aluminum deep pan or factory Ford deep pan.
4 Must be used in conjunction with a 428000 cast aluminum deep pan.

Additional service items can be found here.

Ford C4/C6 Components

SFI BellhousingsTCI 513000 Ford C4 Bellhousing
These bellhousings are SFI-Approved for all sanctioning organizations.

Application Part No.
C4 Small block Ford pattern 513000
C4 Almag 5 7/8-inch case-filled Bellhousing 513350
C4 Modular 4.6, 5.4, V10 pattern 513100

Stock Bellhousings
Refurbished, quality inspected Ford bellhousings for your C4.

Application Depth Part No.
C4 pan-filled bellhousing 6 1/4" 513200
C4 case filled bellhousing 5 7/8" 513300
C4 case filled bellhousing 6 3/4" 513310

Ford SFI FlexplatesFord SFI Flexplates  
These small block flexplates are constructed to exacting standards and are SFI 29.1 approved. Built extra-thick with welds on both sides of the ring gear. These flexplates are precision balanced and checked for run out. These work with 289-351C, 351M-400M engines.

Description Part No.
Ford small-block, 157 tooth, 0 oz., 10.5 inch bolt pattern 529615
Ford small-block, 157 tooth, 28 oz., 10.5 inch bolt pattern 529618
Ford small-block, 157 tooth, 50 oz., 10.5 inch bolt pattern 529610
Ford small-block, 164 tooth, 0 oz., 11.5 inch bolt pattern 529625
Ford small-block, 164 tooth, 28 oz., 11.5 inch bolt pattern 529628
Ford small-block, 164 tooth, 50 oz., 11.5 inch bolt pattern 529620

Severe Duty Transmission Crossmember MountTCI 952501 Ford Transmission Mount
This quality crossmember mount is made from urethane and features a safety interlock between mounting points. A great addition for high horsepower applications that require maximum shock absorption. The urethane is impervious to grease, oil and road grime unlike stock rubber mounts. Kit comes complete with mount and high strength installation hardware.

Description Part No.
Ford Application 952501

Ford C6 Low Drag Set
This low drag set for the C6 replaces the troublesome stock thrust washers with needle bearings that reduce friction and extend transmission life.  Set includes forward planetary assembly, forward clutch hub, reverse planetary assembly, reverse ring gear, rear sprag inner race and roller bearing rear park gear.  All thrust washers are replaced by a needle bearing.

Application Part No.
Low drag planetary set, 1967-76 (complete set) 425000
Low drag planetary set, 1977 & later (complete set) 425001
Replacement bearings for complete set 424900

Low Gear Planetary

Application Part No.
Ford C6 (2.72 1st, 1.54 2nd) with low drag bearings installed 427500
Ford C4 (2.75 1st, 1.57 2nd) 527500

C4 Six-Pinion Planetary & Low-Drag C4 Planetary SetTCI 527600 C-4 6-pinion platetary
The strength of the C4 forward planetary has become an issue with the ever increasing loads that racers are subjecting this transmission to. With this new six-pinion planetary, the load capacity is doubled!

Taking this one step further is our low-drag planetary set. This will yield both an increase in torque capacity along with a savings in wasted horsepower. By replacing the stock thrust washers throughout the assembly with high-quality needle bearings, friction is greatly reduced. This includes all components of the planetary system, including our 527600 six-pinion forward carrier, and have been machined as a set for proper clearances.


Application Part No.
C4 Six-Pinion Low Drag Planetary Set 525000
C4 Six-Pinion Forward Planetary 527600
 

C4 Reinforced Forward Drum

One pitfall of the OE forward C4 drum is the tendency to fracture in the splined area. TCI® has addressed this weak point by installing a custom steel sleeve in the drum to reinforce this area. Furthermore, the drum is machined to accept an included thrust needle bearing to replace the factory washer.

 

Application Part No.
C4 Reinforced Forward Drum with bearing 523855

Aluminum Drums
Manufactured from 7075-T6 aluminum billet because of the outstanding strength properties of the material. Reduces weight from the transmission's rotating mass without compromising drum integrity. All drums are designed to hold up to five clutches and are hard-coat anodized for improved wear characteristics.

Description OEM Drum Weight (lbs.) TCI Drum Weight (lbs.) Weight
Savings
(lbs.)
Part Number
Ford C6 Direct (Front) 9.94 4.23 5.71 423900

Hardened Input ShaftsTCI 549700 C-6 input shaft

Application Vaccu Melt 300
Ford C6 input shaft with 31/30-spline count 427600
Ford C4 input shaft with 26-spline count 549700

Transmission Clutch Plates
Application   High Perf. Frictions Super HD Red Frictions
Ford C6 Direct 424000 (5 ea.) .075
424005 (5 ea.) .075

424001 (1 ea.) .075
Forward 424500 (5 ea.) .061
 
Reverse 424700 (5 ea.) .075
 
Ford C4 Direct & reverse 524000 (5 ea.) .078
524005 (5 ea.) .078
Forward 524500 (5 ea.) .061
 

TCI 425505 C6 Red Eagle PowerbandNew! Ford C6 Powerband™

Lined with ultra-tough Alto Red Eagle® friction material and constructed a half inch wider then OEM, the TCI® 425505 PowerbandT band is a must have when you're looking to maximize the torque capacity of your C6 transmission. All new construction with thick, heat-treated lugs.

High Performance Flex Bands
Application Part No.
Ford C6, intermediate, stock width 425500
Ford C6, intermediate, PowerbandT 425505
Ford C4, intermediate, stock width 525500

TCI 423005 C6 R-code ServoFord C6 R-code Intermediate Servo

The TCI® 423005 servo assembly is an improved version of the rare Ford R-code servo that was originally used only in big-block, Cobra Jet applications. The 2.465"-diameter apply piston has 25%-35% more apply area than more common OEM servos which means more apply force on the intermediate band. All new, billet construction means superior sealing and performance. The servo pin is designed with an integral o-ring and Teflon® seal to prevent leakage due to worn case bores. 

Kit is complete with all seals and gasket. Also included are two different rate return springs which allows for shift quality tuning.