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Summit Racing™ Performance Transmissions SUM-700380-SFI

In stock

$3,480.00

The Summit Racing Performance Transmission SUM-700380-SFI is a high-performance automatic transmission designed for vehicles that require dependable power transfer, consistent shifting, and strong drivetrain durability. Built for performance applications and street-driven vehicles, this transmission system provides reliable gear changes and the strength required to handle increased horsepower and torque.

The Summit Racing Performance Transmission SUM-700380-SFI is a performance-built automatic transmission designed for vehicles requiring smooth shifting and dependable drivetrain performance. Engineered with durable internal components and precision assembly, this transmission is suitable for performance vehicles, muscle car builds, and restoration projects that require a reliable automatic transmission system.

Automatic Transmission, GM Bellhousing, Full Manual Valve Body, Reverse Shift Pattern, SFI 4.1, Chevy, TH400, Each

Description

Overview

The Summit Racing Performance Transmission SUM-700380-SFI is engineered to provide dependable automatic transmission performance for vehicles that demand reliable power delivery and consistent gear changes.

Automatic transmissions are responsible for transferring engine power to the drivetrain while managing gear ratios during acceleration and driving conditions. Performance transmissions are designed to support increased engine output while maintaining smooth and predictable shifting performance.

Summit Racing is widely recognized in the automotive performance industry for producing drivetrain components designed for durability and performance-oriented applications.

The Summit Racing Performance Transmission SUM-700380-SFI provides a dependable transmission solution for performance vehicles and street builds requiring a high-quality automatic transmission.

Vehicles and Applications

The Summit Racing Performance Transmission SUM-700380-SFI is commonly used in vehicles requiring a performance-capable automatic transmission.

Typical applications include:

• performance street vehicles
• classic muscle cars
• automotive restoration projects
• engine swap builds
• vehicles requiring upgraded drivetrain systems

Because transmission compatibility depends on drivetrain configuration, engine setup, and mounting specifications, confirming compatibility before installation is important.

Build Quality and Engineering

The Summit Racing Performance Transmission SUM-700380-SFI is built with durable internal components designed to provide dependable shifting and long-term drivetrain reliability.

Automatic transmissions contain multiple systems that work together to control gear changes and transfer engine power to the wheels. These systems typically include:

• planetary gear sets
• clutch packs
• valve body assemblies
• hydraulic control systems
• torque converter interface

Precision engineering ensures these components operate smoothly together, allowing the transmission to deliver consistent performance across different driving conditions.

Performance-oriented transmissions are often designed to support higher horsepower and torque levels compared to standard factory transmissions.

Why This Transmission Is a Reliable Choice

The Summit Racing Performance Transmission SUM-700380-SFI is widely chosen by mechanics and performance builders because it is designed to provide reliable shifting performance and durable drivetrain operation.

Proper transmission performance is essential for maintaining vehicle drivability and protecting other drivetrain components.

Many buyers select this transmission because it offers:

• smooth and consistent gear shifts
• durable internal transmission construction
• compatibility with performance drivetrain setups
• reliable power transfer from engine to drivetrain

Installing a professionally engineered transmission can improve overall drivetrain reliability and vehicle performance.

Who This Transmission Is Designed For

The Summit Racing Performance Transmission SUM-700380-SFI is designed for buyers who require a dependable automatic transmission for performance or restoration vehicles.

Typical buyers include:

• automotive mechanics installing replacement transmissions
• classic car restoration specialists
• performance vehicle builders
• engine swap project builders
• drivers upgrading drivetrain components for improved reliability

This transmission is particularly suitable for vehicles requiring a durable automatic transmission capable of supporting performance engines.

Transmission Specifications

The Summit Racing Performance Transmission SUM-700380-SFI is a performance automatic transmission engineered for dependable drivetrain operation.

Key specifications include:

• Transmission Type: Automatic transmission
• Model Number: SUM-700380-SFI
• Application: Performance and street vehicles
• Function: Transfers engine power to the drivetrain while managing gear changes
• Use: Performance builds and drivetrain replacement installations

The transmission integrates with compatible drivetrain systems including the engine, driveshaft, and vehicle control components.

Compatibility should be verified before installation to ensure proper drivetrain integration.

Ordering and Support

Ordering the Summit Racing Performance Transmission SUM-700380-SFI provides a dependable replacement solution for vehicles experiencing transmission wear or drivetrain performance issues.

Before purchasing a replacement transmission, it is recommended to verify:

• drivetrain configuration
• engine compatibility
• transmission mounting specifications
• torque converter compatibility

Professional transmission suppliers often assist customers in confirming the correct transmission configuration before purchase.

With proper installation and maintenance, a high-quality automatic transmission can deliver dependable performance for many years.

Frequently Asked Questions

What is a performance automatic transmission?

A performance automatic transmission is designed to handle increased horsepower and torque while maintaining smooth and reliable gear changes.

What vehicles can use this transmission?

This transmission is commonly used in performance vehicles, classic muscle cars, and engine swap builds requiring a durable automatic transmission system.

What does SFI certification mean?

SFI certification indicates that a component meets specific safety and performance standards established for racing and high-performance automotive parts.

Can performance transmissions handle high horsepower?

Yes. Performance transmissions are typically built with stronger internal components designed to support higher horsepower and torque levels.

How do I confirm this transmission fits my vehicle?

Compatibility should be verified using drivetrain configuration, engine setup, and mounting specifications before installation.

Brand: Summit Racing
Manufacturer’s Part Number: SUM-700380-SFI
Part Type: Automatic Transmissions
Product Line: Summit Racing™ Performance Transmissions
Summit Racing Part Number: SUM-700380-SFI
UPC: 190861257375
Number of Gears: 3
Bellhousing Bolt Pattern Manufacturer: Chevy
Transmission Shift Pattern: Reverse
Valve Body Style: Full manual
Transmission Advertised Horsepower Rating: 1,300
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 (in.): 4.000 in.
Yoke Style: Slip-on
Input Spline Quantity: 30
Input Shaft Material: 4340 steel
Input Shaft Style: TH350/400
First Gear Ratio (Automatic Transmissions): 2.48
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
Remanufactured: Yes
Quantity: Sold individually.
Notes: Features a billet aluminum internal solenoid transbrake, Pro-Mod 36 Drum/Sprag, direct drum modified for instant transbrake release, clutch packs, and unit end play clearanced for “low drag” friction free performance. Requires the SUM-700406 SFI 30.1 aftermarket bellhousing.

Summit Racing™ Performance Transmissions

Think you have to drain every last penny from your bank account to get a quality transmission? Think again. Our Summit Racing™ performance transmissions have been manufactured with all-new, high performance components. Features include a high-volume pump, performance clutches and steels, a recalibrated full manual trans-brake valve body, heavy-duty sun shell, deep aluminum pan, and high-quality seals and gaskets. You get all these quality upgrades, plus reliable performance from Summit Racing™ performance transmissions.

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Summit Racing Performance Transmission SUM-700380-SFI
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