Description
Product Overview
The FTI Performance Mud Series Powerglide Level 5.5 Transmissions MPG5.5S is a race-focused Powerglide automatic transmission engineered for extreme mud racers and high-output performance builds. Designed for serious competition use, this transmission is built to handle up to 2,200 advertised horsepower, making it ideal for compatible applications using blowers, multi-stage nitrous, and aggressive racing power combinations.
This unit is identified by Manufacturer’s Part Number MPG5.5S, Summit Racing Part Number FTI-MPG55S, and UPC 887753816153. These identifiers help race teams, performance builders, drivetrain specialists, mud racing shops, engine builders, and competition-focused service departments confirm the correct transmission before ordering.
The transmission features a 2-speed configuration, Chevy bellhousing bolt pattern, forward shift pattern, and full manual valve body. It is designed for drivers and builders who want direct control over gear changes in demanding race conditions.
A key performance feature is the included trans-brake, which supports race launch control when installed and used with the correct supporting components. The transmission is not lockup compatible, so buyers should confirm converter and driveline setup accordingly.
The aftermarket aluminum case carries an SFI 4.1/30.1 rating, giving this transmission strong appeal for competition builds where certified case strength and race compliance matter.
Inside, this transmission uses a 30-spline Vasco input shaft with a ring-less design, a TH350/400 input shaft style, billet steel clutch hub, and included 300M output shaft. These are important strength-focused specifications for high-horsepower mud racing applications.
The transmission also features a deep aluminum pan with a natural finish to help support fluid capacity and cooling performance in demanding use.
Fitment and Application Details
The FTI MPG5.5S Mud Series Powerglide Level 5.5 transmission should be matched carefully to the intended vehicle, engine, converter, chassis, and racing application before ordering. High-horsepower racing transmission fitment can vary by engine platform, bellhousing pattern, converter setup, flexplate requirements, input shaft style, output shaft setup, shifter configuration, transmission mount, driveshaft length, cooler system, and safety requirements.
Important fitment details to confirm include vehicle make, engine application, Chevy bellhousing bolt pattern, torque converter compatibility, flexplate compatibility, converter bolt pattern, crankshaft pilot fitment, 30-spline input compatibility, TH350/400 input shaft style, output shaft/yoke setup, slip-on yoke compatibility, tailshaft length, transmission mount location, crossmember position, driveshaft length, shifter setup, full manual valve body compatibility, trans-brake wiring, cooler requirements, fluid requirements, dipstick setup, SFI compliance needs, and installation hardware.
This transmission has a 1.625-inch tailshaft length and uses a slip-on yoke style. These specifications should be confirmed with the vehicle’s driveshaft, yoke, mount, and chassis layout before installation.
The torque converter is not included, so buyers should select the correct converter for the engine, horsepower level, stall requirements, race class, vehicle weight, tire setup, and intended use.
The flexplate is not included, and the correct flexplate should be confirmed based on the engine, crankshaft, converter bolt pattern, and application requirements.
The transmission cooler is not included, and proper cooling should be planned separately for demanding race use.
The dipstick is not included, and the correct dipstick/fill setup should be selected before installation.
For a complete installation, buyers may also need a torque converter, flexplate, transmission cooler, cooler lines, dipstick, shifter, shifter cable, trans-brake wiring, transmission mount, crossmember hardware, driveshaft/yoke components, fluid, safety equipment, and vehicle-specific installation parts.
Build Quality and Reliability
The FTI Performance Mud Series Powerglide Level 5.5 MPG5.5S is built for extreme racing environments where ordinary transmission components are not enough. This transmission starts with an SFI-certified aftermarket aluminum case and adds high-strength internal parts designed for serious mud racing power levels.
The 2,200 advertised horsepower rating makes this transmission a strong choice for compatible high-output builds using aggressive combinations such as blowers or multi-stage nitrous.
The full manual valve body gives the driver direct control over shifting, which is important in racing conditions where precise gear control matters.
The included trans-brake supports controlled launch capability when properly wired and used with the correct racing setup.
The Vasco ring-less input shaft is designed for strength in demanding applications, while the included 300M output shaft adds additional durability at the output side of the drivetrain.
The billet steel clutch hub provides a strength-focused internal component for high-stress operation.
The deep aluminum pan helps support cooling and fluid control, which are important in extreme racing conditions.
This transmission is not remanufactured, making it a new performance-focused racing transmission sold individually for serious competition builds.
What Makes This Transmission a Strong Choice
The FTI Performance MPG5.5S Mud Series Powerglide Level 5.5 transmission is a strong choice for buyers who need a 2-speed Powerglide racing transmission built for extreme mud racing and high-horsepower Chevy applications.
The 2,200HP advertised rating gives this transmission serious appeal for competition builds requiring exceptional drivetrain strength.
The SFI 4.1/30.1 rating supports race-focused applications where certified transmission case protection is important.
The full manual valve body provides direct shift control for drivers who need full command over gear changes in racing conditions.
The included trans-brake adds launch-control capability for competition use.
The Vasco ring-less input shaft and 300M output shaft are key strength features for high-power applications.
The billet steel clutch hub and deep aluminum pan add more performance-focused value for demanding racing environments.
The 1.80 first gear ratio gives buyers a specific gear ratio for matching the transmission to engine output, tire size, vehicle weight, and race surface conditions.
Ideal Buyers and Use Cases
The FTI Performance Mud Series Powerglide Level 5.5 Transmissions MPG5.5S is ideal for mud racers, race teams, performance builders, Chevy race shops, drivetrain specialists, chassis builders, engine builders, competition vehicle owners, and high-horsepower service departments that need a serious Powerglide racing transmission.
It is suitable for compatible racing applications requiring a 2-speed automatic transmission, Chevy bellhousing bolt pattern, 2,200HP rating, full manual valve body, trans-brake, SFI-certified aftermarket aluminum case, Vasco input shaft, 300M output shaft, and 1.80 first gear ratio.
This product is useful for extreme mud racing vehicles, blower combinations, multi-stage nitrous builds, competition trucks, high-horsepower race vehicles, and serious Powerglide drivetrain upgrades.
It is also a practical choice for professional builders confirming required supporting components such as the torque converter, flexplate, cooler, cooler lines, shifter, trans-brake wiring, dipstick, driveshaft/yoke setup, transmission mount, and race safety equipment.
The best buyer for this transmission is someone who can confirm the vehicle make, engine application, converter requirements, and racing drivetrain setup before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | FTI Performance Mud Series Powerglide Level 5.5 Transmissions MPG5.5S |
| Brand | FTI Performance |
| Manufacturer’s Part Number | MPG5.5S |
| Part Type | Automatic Transmissions |
| Product Line | FTI Performance Mud Series Powerglide Level 5.5 Transmissions |
| Summit Racing Part Number | FTI-MPG55S |
| UPC | 887753816153 |
| Number of Gears | 2 |
| Bellhousing Bolt Pattern Manufacturer | Chevy |
| Transmission Shift Pattern | Forward |
| Valve Body Style | Full manual |
| Transmission Advertised Horsepower Rating | 2,200 |
| Torque Converter Included | No |
| Flexplate Included | No |
| Transmission Controller Included | No |
| Wiring Harness Included | No |
| Transmission Cooler Included | No |
| Trans-Brake Included | Yes |
| Lockup Compatible | No |
| Transmission Pan Style | Deep |
| Transmission Pan Material | Aluminum |
| Transmission Pan Finish | Natural |
| Tailshaft Length | 1.625 in. |
| Yoke Style | Slip-on |
| Input Spline Quantity | 30 |
| Input Shaft Material | Vasco |
| Input Shaft Style | TH350/400 |
| Input Shaft Design | Ring-less design |
| Output Shaft | 300M output shaft included |
| First Gear Ratio | 1.80 |
| Clutch Hub | Billet Steel |
| Transmission Case Style | Aftermarket |
| Transmission Case Material | Aluminum |
| Transmission Case Finish | Natural |
| Transmission Shield Built In | No |
| Flexplate Shield Built In | No |
| Fluid Fill Location | Case |
| Transmission Fluid Included | No |
| Dipstick Included | No |
| SFI Rating | SFI 4.1/30.1 |
| Remanufactured | No |
| Quantity | Sold individually |
| Fitment Support | Confirm vehicle make and engine application before ordering |
Ordering Support and Fitment Guidance
Before ordering the FTI Performance MPG5.5S Mud Series Powerglide Level 5.5 transmission, confirm that the transmission matches your vehicle, engine, converter, chassis, driveline, and racing application.
Important details to verify include vehicle make, engine application, Chevy bellhousing compatibility, converter requirements, flexplate compatibility, converter bolt pattern, crankshaft pilot fitment, 30-spline input compatibility, TH350/400 input shaft style, slip-on yoke requirements, 1.625-inch tailshaft length, driveshaft length, transmission mount location, crossmember position, shifter compatibility, full manual valve body setup, trans-brake wiring, cooler system, dipstick setup, fluid specification, and SFI/race safety requirements.
This transmission does not include the torque converter, does not include the flexplate, does not include a transmission controller, does not include a wiring harness, does not include a transmission cooler, does not include transmission fluid, and does not include a dipstick. These supporting components should be selected separately before installation.
Our team can help confirm compatibility using the MPG5.5S part number, vehicle make, engine application, racing setup, and drivetrain details before purchase.
Frequently Asked Questions
What is the FTI Performance MPG5.5S transmission?
The FTI Performance MPG5.5S is a Mud Series Powerglide Level 5.5 2-speed automatic racing transmission. It is built for extreme mud racing and compatible high-horsepower Chevy applications.
How much horsepower is this transmission rated for?
This transmission has a 2,200 advertised horsepower rating, making it suitable for compatible high-output racing builds, including applications using blowers or multi-stage nitrous.
Is this transmission remanufactured?
No. The FTI Performance MPG5.5S is listed as not remanufactured. It is sold individually as a new performance racing transmission.
Does this transmission include a torque converter?
No. The torque converter is not included. Buyers should choose the correct converter for the engine, horsepower level, stall needs, vehicle weight, tire setup, and racing application.
Does this transmission include a trans-brake?
Yes. The trans-brake is included. Buyers should confirm trans-brake wiring, activation method, and shifter compatibility before installation.
What valve body does this transmission use?
This transmission uses a full manual valve body, giving the driver direct control over gear changes in racing applications.
What input shaft does this transmission use?
The transmission uses a 30-spline Vasco input shaft with a ring-less design and TH350/400 input shaft style.
Does this transmission include a 300M output shaft?
Yes. The notes specify that this transmission includes a 300M output shaft, an important strength-focused feature for demanding racing applications.
What first gear ratio does this transmission have?
The first gear ratio is 1.80. This ratio should be matched to the engine output, vehicle weight, tire size, and racing surface conditions.
What SFI rating does this transmission have?
This transmission is listed with an SFI 4.1/30.1 rating, supporting race-focused applications where SFI-certified components may be required.
Does this transmission include a cooler, fluid, or dipstick?
No. The transmission cooler is not included, transmission fluid is not included, and the dipstick is not included. These parts should be selected separately before installation.
Is this a complete installation kit?
No. This transmission is sold individually. Supporting components such as the torque converter, flexplate, cooler, cooler lines, dipstick, shifter, trans-brake wiring, fluid, mount, driveshaft/yoke parts, and safety equipment may be required separately.
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