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Kwik-Shift I "Powershift" Air Shifter PPP-456B
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Precision Performance 456, Kwik-Shift I Air Shifter, TH350/400

  • SKU
    PPP-456B-FT

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Precision Performance Products #456, Kwik-Shift I Air Shifter, GM TH350 and TH400, Reverse Pattern Valve Body
  • $394.25
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  • SKU
    PPP-456B-FT

Product Made in the USAKwik-Shift I Air Shifter for GM TH400 and TH350 with Reverse Valve Body

Automatic Transmission POWER-Shifter

"Once you have tried the Kwik-Shift shifter, no other brand will be acceptable."
 
The Lightest, Narrowest, Best-Looking, most Consistent and Durable Shifters available! Designed from the ground up as the ultimate automatic transmission shifter. No-compromise solutions provide positive locking shift gates, optimum control, dead-on repeatability and long term reliability. This is the best-looking, most dependable shifter available. Suitable for real Race Cars, Pro Street Cars or performance Street applications. Works perfectly with Standard or Manual Valve Bodies, Forward or Reverse Shift Patterns in Drag, Street, Off-Road, and Circle Track Race Cars.
To date no POWER-SHIFT I, KWIK-SHIFT I or KWIK-SHIFT II unit has ever been returned broken, found defective, malfunctioning or misbehaving since production begin in 1988.  We like it that way. Precision Performance Products maintain this reliability record by utilizing only the highest quality materials, precise CNC machining, finite calibration and obsessive dedication to offering the best product available. Every Precision Performance Product shifter is carefully and thoroughly inspected, qualified, and load tested before shipment. 
Features on All Kwik-Shift Shifters:
  • Precision CNC Machined 6061 T-6 Billet Aluminum and 303 & 304 Stainless Steel components
  • Positive Locking Shift Gates
  • Shift Patterns for Standard or Reversed Valve Bodies on all three and four speed models
  • Narrow Design only 3/4" Wide
  • Light Weight (only 18 oz. for manual shifter)
  • Positive Reverse Lockout easily operable with one gloved hand
  • Laser Etched PPP Logo
  • CNC Engraved Gear Position Indicators
  • Neutral and Park Starter Enable Switch
  • Easily Convertible to Front or Rear Cable Exit
  • Precisely Calibrated Micro Switches
  • Every Shifter tested thoroughly with mechanical and electrical load
  • Utilizes readily available, easily replaceable Morse style cables
  • Low Friction Teflon Lined Air Cylinders
  • Line-Lock and/or Nitrous Switches **
  • Polished 303 Stainless Steel Mounting Plates **
  • CO2 Shifter Kits **
  • Shifter Cables and Brackets **
  • Made in the USA
** Sold Separately
 

Unique Features of the Kwik-Shift I

  • Three Year Unconditional Warranty
  • CNC Machined Billet 6061-T6 polished and red or black anodized billet aluminum handle and side plates
  • CNC Machined Billet 6061-T6 satin finished and clear anodized lever and top button
  • CNC Machined Billet 303 Stainless Steel gate selection and indicator pin
  • All Polished Stainless Steel Hardware
  • Precision Die Formed 304 Stainless Steel End Bracket with integral Quick Release shifter cable and wiring harness
  • Integrated 6ms activation Trans Brake Switch, activated by the top thumb button
  • Polished Stainless Steel Fasteners
 
SPECIFICATIONS:
  • Fits GM TH400 and TH350 Transmissions
  • For use with Reverse Pattern Valve Bodies
  • Choice of Push or Pull Pattern (depends on cable exit). Please review CABLE EXIT tab.
  • Includes Bottom-Mounted Air Cylinder

Product questions

  • Shane kirkland
    Jan 9, 2019, 12:55 PM

    What tells the shifter when to shift?

    Administrator
    Jan 9, 2019, 01:18 PM

    It depends on what electronics are on the vehicle. On air-shifted applications, the shifter still operates normally (manually), but also has the capability to function using air for the 1-2 and 2-3 shifts.

    Typically, the vehicle has an ignition unit with adjustable RPM activated switches or the capacity to add them. Late model vehicles that use modern computer systems or controllers will usually also have RPM activated features. These switches/controllers are then wired to the air shifter solenoid. Once the switch sees the desired RPM from the engine it opens the electrical connection, sending power to the solenoid that allows high pressure CO2 to pass to the air cylinder, creating the upshift. It quickly resets and awaits the signal from the second switch to operate the 2-3 shift.

Customer reviews
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The modular design of the Kwik Shift shifter allows the builder / vehicle owner to only purchase those items necessary to complete the installation. Precision Performance does not believe in selling the customer a box of parts (a kit) that either includes items that will never be used, or includes the wrong parts for the specific application---forcing the customer to spend additional funds to complete the install.

Here are common items that may or may not be needed:

Floor Mount Brackets - Door cars may need floor mount brackets, where a dragster will not. Some builders may decide to fabricate their own brackets. This often occurs on those applications with either a tall transmission tunnel and not using an air shifter. Another concern is height. From the base of the floor mount brackets to the tip of the handle button at its highest point is 12.5" (31.75 cm).

Shifter Cable - A person may already have a shifter cable that is the proper length. For FRONT exit shifter applications, a 7.0' (2.13m) or 6.0' (1.83m) length cable is common. For REAR cable exit applications, a 5.0' (1.52m) or 4.0' (1.22m) cable length is common. Front exit applications must make an "S" turn between the shifter and trransmission, and rear exit applications simply make a "U" turn. Making these bends too tight may cause premature failure of the cable lining---choose the cable length carefully.

Cable Bracket and Lever - Offered individually or as a kit, these items provide a secure connection point between the cable to the transmission. If the transmission already has a lever attached to the shaft (for the end of the cable to attach), a new lever may not be necessary.

Air Cylinder - For Kwik Shift 2 applications. Note: We recommend the Kwik Shift 1 shifter for air operation. Air cylinders for the KS-2 shifters are often purchased after-the-fact, when the user decides to add air shifting to what was once a manually-shifted KS-2.

CO2 Kit - For air shifter applications, this kit includes the remaining items (less controller) to complete an air shifter installation. (CO2 bottle, line & fittings, valve, solenoid).

Thumb Button & Bracket - Many racers still prefer a thumb button on their shifter to control a line loc, trans brake, backup lights, etc. Note: On Kwik Shift 1 applications, the top buttom in the handle is wired to a microswitch in the shifter case for this purpose.

Other Items: Electric Shift Solenoid (Only certain 2-speed GM Powerglide applications); Quick disconnect, trunion, or ball & stud, for shifter cable (at transmission): Starter Switch Relay

For FRONT exit shifter applications, a 7.0' (2.13m) or 6.0' (1.83m) length cable is common.

For REAR exit applications, a 5.0' (1.52m) or 4.0' (1.22m) cable length is common.


Front exit applications must make an "S" turn or wide loop between the shifter and trransmission, and rear exit applications simply make a "U" turn. Making these bends too tight may cause premature failure of the cable lining---choose the cable length carefully.

 

Kwik Shift Shifters can be ordered with either a FRONT or REAR cable exit. However, it is important to understand how this affects other aspects of the shifter design.

The Cable Exit Determines:

  • The up-shift pattern of shifter, whether it is a PUSH to up-shift or a PULL to up-shift
  • Whether the PARK location sits toward the front of the vehicle or toward the rear.
  • (On Air Shift applications) Where the air solenoid will mount (Kwik Shift 2), or where the air lines will connect (Kwik Shift 1).
  • On Electric Shift applications (GM Powerglide), "if" or where the solenoid will mount.

Kwik-Shift I, part #456 (GM TH400 and TH350)

Rear Cable Exit for this shifter = PUSH  up-shift pattern :::: FRONT of Vehicle  (3-2-1-N-R-P)

Front Cable Exit for this shifter = PULL up-shift pattern :::: FRONT of Vehicle  (P-R-N-1-2-3)


Please Note from the above examples:

  • Cable Exit
  • Front of vehicle
  • Up-shift pattern (push vs pull)
  • Location of PARK
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