Turbo 400 TH400 Aluminum Extreme Performance Transmission SFI 4.1 2500+ HP
Overview
Specs
| Brand: | Speedmaster |
| Part Number: | PCE432.1053.02 |
| Part Type: | Automatic Transmission |
| Number of Gears: | Three |
| Valve Body Style: | Billet Aluminum Reverse Pattern Full Manual |
| Transmission Advertised Horsepower Rating: | 2500+ HP |
| Torque Converter Included: | No |
| Trans-Brake Included: | Yes |
| Lock Up Compatible: | No |
| Transmission Pan Style: | Deep |
| Transmission Pan Material: | Aluminum |
| Transmission Pan Finish: | Black Finned |
| Tailshaft Length: | Standard |
| Input Spline Quantity: | 30 |
| Input Shaft Material: | 300M Steel |
| Input Shaft Style: | TH400 |
| First Gear Ratio: | 2.10 |
| Second Gear Ratio: | 1.40 |
| Third Gear Ratio: | - |
| Reverse Gear Ratio: | - |
| Clutch Hub: | Billet Steel |
| Transmission Case Style: | Aftermarket SFI |
| Transmission Case Material: | Aluminum |
| Transmission Case Finish: | Natural |
| Transmission Shield Built In: | Yes |
| Flexplate Shield Built In: | Yes |
| Fluid Fill Location: | OEM Case |
| Dipstick Included: | No |
| Safety Rating: | 4.1 |
| Quantity: | Sold individually. |
| Retainers Included: | Yes |
| Retainer Material: | Chromoly Steel |
| Locks Included: | Yes |
| Notes: | Case is SFI 4.1 Certified. Bellhousing is sold separately. |
Description
Key Features:
- SFI 4.1 Certified Aluminum Case: Ensures exceptional safety and durability in high-performance conditions.
- Billet Aluminum Reverse Pattern Valve Body: Equipped with an external trans-brake solenoid for seamless drag racing operation.
- Planetary Gear Set: Straight-cut, 4340 steel construction with a 6-pinion reaction and 5-pinion output for superior torque handling.
- Billet Components: Includes a 36-element billet aluminum drum, a billet oversized intermediate piston (10% more clamping force in 2nd gear), and a hardened 300M steel input shaft.
- High-Performance Pump Assembly: Features a billet aluminum pump with a high-rate pressure regulator for optimized fluid flow and reliability.
- Intermediate Band Eliminated: Improves durability and eliminates engine braking concerns, ideal for drag racing applications.
- Deep Aluminum Pan: Black-finned for enhanced cooling and increased fluid capacity.
- Proven Performance: Tested successfully in extreme applications, including a 540 Big Block Chevy-powered sand truck producing 1500+ HP and reaching 150 mph.
Why Choose This Transmission?
Whether you're competing on the drag strip or building the ultimate high-performance street machine, the Speedmaster TH400 Transmission offers unmatched reliability, precision, and strength. Its state-of-the-art design and premium components make it the gold standard for racers who demand the best.
Built For:
- Street Performance
- Drag Racing
- Off-Road Applications
Disclaimer:
The bellhousing shown in photos and videos is for illustrative purposes only and is not included with this transmission, it is sold separately.
Brand Information
In 1979, the company was founded with Pete's Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which entails more than 400+ people all across the world. Today, Pete's Performance has evolved into the internationally known Speedmaster: which has distribution centres and offices is Sydney, Los Angeles and Shanghai.