1. Car & Truck Manual Transmission Parts Deals
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  3. SPEEDMASTER PCE646.1004

SPEEDMASTER PCE646.1004 Cast Iron Toploader Gearbox Speed Transmission

fits make: Ford.

Pce646.1004 Speedmaster Ford 4 Speed Wide Ratio Cast Iron Toploader Gearbox Transmission Short

( Brand: Speedmaster ), ( Manufacturer Part Number: PCE646.1004 ), ( Type: Transmission Assembly ), ( Manufacturer Warranty: 1 Year ), ( Material: Cast Iron )

Review SPEEDMASTER Ford Speed Wide Ratio Cast Iron Toploader Gearbox Transmission Short

The Speedmaster PCE646.1004 Ford Cast Iron Toploader Gearbox Transmission is a high-performance component designed specifically for Ford applications. This transmission is engineered to deliver robust and reliable power transmission, making it an ideal choice for both racing and high-performance street applications.

The transmission housing is made of cast iron, ensuring maximum durability and heat resistance. The cast iron construction allows the transmission to withstand the extreme temperatures and heavy loads that come with high-performance applications. The top-loading design of the transmission allows for easy access to the clutch and transmission components, making it simpler to service and maintain.

The Speedmaster PCE646.1004 transmission features a 6-speed design, offering a wide range of gears to suit various driving conditions. The gears are precision-machined from high-strength steel, ensuring superior strength, durability, and smooth shifting characteristics. The synchronizers are designed to provide smooth and precise shifts, reducing clutch shock and wear.

The transmission comes with a heavy-duty input and output shaft, which are designed to handle high torque loads. The shafts are made of high-strength steel, ensuring they can handle the rigors of high-performance driving. The transmission also features a robust clutch system that can handle the power and torque of high-performance engines.

The Speedmaster PCE646.1004 Ford Cast Iron Toploader Gearbox Transmission is built to the highest standards of quality and precision. Each transmission undergoes rigorous testing to ensure it meets or exceeds OEM specifications. The transmission is also backed by a comprehensive warranty, giving customers peace of mind and confidence in their purchase.

In summary, the Speedmaster PCE646.1004 Ford Cast Iron Toploader Gearbox Transmission is a high-performance component designed for Ford applications. It features a robust cast iron housing, a 6-speed design, heavy-duty input and output shafts, and a high-performance clutch system. This transmission is built to handle the demands of high-performance driving and is backed by a comprehensive warranty.

The Ford C6 transmission, specifically the Speedmaster PCE646.1004 variant, is a popular choice for those looking to upgrade or rebuild their manual gearboxes. This cast iron top loader transmission is widely used in various Ford models, particularly Mustangs and older F-series trucks. Here are some pros and cons to consider before making a purchase.

Pros:

1. Durability: Cast iron construction makes this transmission robust and long-lasting. It can handle high horsepower and torque, making it suitable for performance upgrades.

2. Adaptability: The C6 transmission is widely used and readily available. There is a vast array of aftermarket parts and upgrades available, making it a popular choice among enthusiasts.

3. Versatility: This transmission is compatible with various Ford models, making it a versatile option for those looking to upgrade multiple vehicles.

4. Smooth Operation: The C6 transmission is known for its smooth shifting and reliable operation.

Cons:

1. Weight: Cast iron transmissions are heavier than their aluminum counterparts. This increased weight can lead to additional fuel consumption and wear on other vehicle components.

2. Size: The C6 transmission is larger than some other transmissions, which may require modifications to fit into certain vehicles or engine bays.

3. Cost: The Speedmaster PCE646.1004 transmission can be more expensive than some other aftermarket transmissions. However, the durability and versatility it offers may justify the investment for some.

4. Complexity: Rebuilding or installing a C6 transmission can be a complex process. It requires specialized tools and a good understanding of the transmission's inner workings.

In conclusion, the Speedmaster PCE646.1004 Ford cast iron toploader gearbox transmission offers durability, versatility, and smooth operation. However, it comes with a higher cost, increased weight, and a more complex installation process. If you are looking for a reliable and robust transmission for your Ford vehicle and have the necessary resources to install it, this transmission may be a worthwhile investment.

Recommendation: If you are considering purchasing a Speedmaster PCE646.1004 Ford cast iron toploader gearbox transmission, make sure to thoroughly research the installation process and the availability of necessary tools and aftermarket parts. Additionally, consider the vehicle's engine size, power output, and available space before making a decision.

Details:

Overview, This Speedmaster manual transmission is built with all brand new components and case. Designed for engines producing up to 500hp, all components are hand fit and assembled in USA the ultimate precision finish. Tail shaft length : Short Bell housing Included: No Yoke Style: Slip-on Shiftier required: Long First Gear Ratio: 1:2.78 Second 1:1.92 Third 1:1.35 Fourth 1:1.00 Case Material: Cast Iron Quantity: Sold Individually. Specs, Brand: Speedmaster Part Number: PCE646.1004 Type: Manual Transmissions Number of Gears: 4 Gear Ratio: Wide Input Shaft Diameter in.: 1.0625 in Spline Quantity: 10 Output 31 in: 1.360.

part #: pce6461004 prices

  • $2999.00-$3452.63

specifications manutransmission:

  • for makes: Ford
  • brand: Speedmaster
  • mpn: Pce646.1004
  • type: Transmission Assembly
  • manufacturer warranty: 1 Year
  • material: Cast Iron

seller manutransmission:

  • rating: 98.9%
  • city: Rialto, California
  • # reviews: 1152

shipping manutransmission:

  • class: Standard
  • cost: $0.00
  • service: FedEx Ground or FedEx Home Delivery
  • type: Fixed
  • transit: 4-10 Days
  • carrier: FedEx

offer manutransmission:

  • sold: 0
  • options: Ship-to-home
  • started: June 22, 2025
  • availability: In Stock
  • quantity: 3

returns manutransmission:

  • policy: No Returns

payments manutransmission:

  • credit card: Mastercard
  • wallet: Google-pay
  • other

general manutransmission:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
for makes: ford, type: transmission assembly, manufacturer warranty: 1 year,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, material: cast iron, sku: 6233059819506761,

Speedmaster PCE646.1004 Is Similar To:

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3 offers $2999.00–$3452.63 USD
  • Offer #1: $2999.00 price + $0.00 shipping estimate = $2999.00* total. Designed for engines producing up to 500hp, all components are hand fit and assembled in USA for the ultimate in precision fit and finish. Gear Ratio: Wide.FREE SHIPPING
  • Offer #2: $3452.63 price + $452.04 shipping estimate = $3904.67* total. While all care is taken, any errors or omissions in the item details is unintentional. Tailshaft Length: Short.+$452.04 shipping
  • Offer #3: $3452.63 price + $642.11 shipping estimate = $4094.74* total.+$642.11 shipping

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