SKU: DDUSS6003AUSOALB

SS6003AUSOALB Street Series Auto Speed Of Air Long Block

Out of stock - Call for Availability - 208-719-7400
Confirm fitment before purchasing
YEARS
2003
MAKE / MODEL
Ford / Super Duty
SERIES
F250/F350
ENGINE
6.0L Powerstroke
Price
$13,304.27
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PRODUCT DETAIL

Key Features & Description

Features:

  • 5-year / 160,000 km warranty
  • Manufactured with industry-recognized parts
  • All-new OEM or equivalent pistons, rings, gaskets
  • Professional block machining for oversized pistons
  • Complete top end gasket kit included
  • Includes cylinder heads with new components
  • ARP series 2000 head studs or OptiTorque studs
  • ARP connecting rod bolts for added strength
  • Advanced Rottler machining for precision
  • Improved gasket sealing in common leak areas
  • Ideal for work trucks and diesel enthusiasts
  • Upgraded to address common problem areas

The Ultimate Upgrade for Your 6.0L Powerstroke Engine

If you're looking for a reliable, high-performance engine replacement for your 2003 Ford F250/F350 6.0L Powerstroke, look no further than the DFC Diesel SS6003AUSOALB Street Series Long Block. Built with the needs of daily drivers, work trucks, and diesel enthusiasts in mind, this engine is the perfect combination of power, durability, and peace of mind. With a comprehensive 5-year/160,000 km (100,000-mile) warranty, you can trust that DFC Diesel stands behind their product. Whether you're tackling tough towing jobs, cruising down the highway, or hitting the job site, this engine has been designed to withstand the challenges you face daily. Featuring ARP series 2000 head studs and ARP connecting rod bolts, the SS6003AUSOALB ensures maximum strength and reliability in every driving condition. Plus, with Total Seal gapless piston rings and all-new OEM-quality components, you're not just getting a rebuild; you're getting a solid, upgraded powerhouse that exceeds OEM standards. Don't settle for anything less than the best, this Street Series engine offers essential upgrades for critical areas prone to failure in stock engines. With this engine, you're getting an investment in long-lasting performance.

Precision Built with the Latest in Engine Technology

The DFC Diesel SS6003AUSOALB Street Series Long Block is meticulously re-manufactured to factory specifications using cutting-edge Rottler machining equipment. Every block is professionally bored to accommodate oversized pistons, ensuring superior compression and performance. All components, from pistons and rings to gaskets and valves, are completely new, designed to meet and exceed OEM standards. The re-manufactured cylinder heads come with new seats, guides, valves, and stem seals, all magnafluxed for added durability and reliability. To ensure improved sealing in commonly problematic areas, advanced gasket sealing methods are used throughout. Whether you choose the Street, Tow/Haul, or Tow/Haul HD series, you can be confident that you're getting a product built with precision and durability at its core. With all-new, high-quality parts, including hardened seats and cast guides, this engine ensures your vehicle is equipped for maximum efficiency and performance, no matter the load.

Fits: 2003 Ford F250/F350 6.0L Powerstroke

Notes:

  • Engine designed for 2003 Ford F250/F350 6.0L Powerstroke
  • Ideal for daily drivers, work trucks, and diesel enthusiasts
  • Comes with a comprehensive 5-year / 160,000 km warranty
  • Engine upgrades address common problem areas in stock engines
  • Includes all-new pistons, rings, bearings, and gaskets
  • ARP head studs and connecting rod bolts for enhanced durability
  • Requires professional installation for optimal performance
  • Available in multiple engine series (Street, Tow/Haul, Tow/Haul HD)
  • Block machined for oversized pistons, increasing performance
  • Includes a complete top-end gasket kit for installation
  • Machining and re-manufacturing exceed OEM specifications
  • Advanced gasket sealing methods for common leakage areas

Street Series vs Tow/Haul vs Tow/Haul HD

  • Street Series: Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.

  • Tow/Haul Series: All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.

  • Tow/Haul HD Series: The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.

Standard/Auto vs Standard vs Auto

  • Standard/Auto: Compatible with both manual and automatic transmissions. Offers the most flexibility.

  • Standard: Built specifically for manual transmission configurations.

  • Auto: Built specifically for automatic transmission setups.

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
2003
Ford
Super Duty
F250/F350
6.0L Powerstroke

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