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Darton Manufactured Dry Block Sleeve Subaru EJ25 Applications

$131.25

Darton Sleeves

Model #300-031-3

Hurry Low Stock


Shopper Award

The unique matrix of Darton s centrifugally cast nodular iron sleeves provides unexcelled surface toughness. Darton s unique casting process provides a bore finish which, while very tough, promotes quick and total piston ring seal for the most complete combustion possible from each cylinder. Darton pioneered modular sleeve designs and specialty ductile iron material beginning with their manufacture of top fuel sleeves in 1978.

Darton sleeves excel in the harsh environment of all-out racing. Their centrifugally cast nodular composition represents the highest quality of any cast material.

Features:

  • Sold Individually
  • Bulletproof Darton ductile iron
  • High boost and horsepower potential
  • 130,000-psi tensile strength
  • Cast iron performance in an aluminum block
  • Superior cylinder sealing and ring wear
  • Improved block integral strength & cooling
  • Street or strip application
Specifications:
  • Bore: 3.890in
  • Outer Diameter 1: 4.250in
  • Outer Diameter 2: 4.200in
  • Wall Thickness: 0.180in
  • Length: 4.800in
  • Flange Thickness: 0.500in
  • Flange Diameter: 4.600in
  • Flats: 2.223in
  • Application: 99.5mm to 102mm
Fitment:
  • Saab 9-2x Linear (EJ253 - USA) 2.5L H4 05-06
  • Saab 9-2x Aero (EJ255 - USA) 2.5L H4 Turbo 05-06
  • Subaru Baja (EJ251 - USA) 2.5L H4 03-04
  • Subaru Baja (EJ253 - USA) 2.5L H4 05-06
  • Subaru Baja (EJ255 - USA) 2.5L H4 Turbo 04-06
  • Subaru Forester (EJ25D - USA) 2.5L H4 1998
  • Subaru Forester (EJ251 - USA) 2.5L H4 00-02
  • Subaru Forester xT (EJ255 - USA) 2.5L H4 Turbo 04-08
  • Subaru Forester xT (EJ255 - USA) 2.5L H4 Turbo 09-13
  • Subaru Impreza (EJ25D - USA) 2.5L H4 1998
  • Subaru Impreza 2.5RS / 2.5TS (EJ251 - USA) 2.5L H4 98-01
  • Subaru Impreza 2.5RS (EJ254 - USA) 2.5L H4 02-04
  • Subaru Impreza Outback Sport (EJ251 - USA) 2.5L H4 02-04
  • Subaru Impreza WRx (EJ255 - USA) 2.5L H4 Turbo 06-07
  • Subaru Impreza WRx (EJ255 - USA) 2.5L H4 Turbo 08-14
  • Subaru Legacy (EJ253 - USA) 2.5L H4 05-09
  • Subaru Legacy 2.5GT (EJ255 - USA) 2.5L H4 Turbo 05-09
  • Subaru Outback (EJ25D - USA) 2.5L H4 96-99
  • Subaru Outback (EJ251 - USA) 2.5L H4 00-04
  • Subaru Outback (EJ253 - USA) 2.5L H4 05-09
  • Subaru WRx STI (EJ257 - USA) 2.5L H4 Turbo 04-07
  • Subaru WRx STI (EJ257 - USA) 2.5L H4 Turbo 08-14
Notes:
  • Darton EJ25 cylinder sleeves will also fit most non-USA market Subaru EJ25 engines. Please call for details.

Proposition 65

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Vehicle Engine Notes
2002-2007
Subaru STI

2002-2007
Subaru WRX

The Story of Darton Sleeves

Darton Sleeves was incorporated in 1978 with the goal of becoming a premier manufacturer of automotive speed parts. In pursuit of this objective, the founders established manufacturing relationships with several unique European factories that specialized in products and techniques that would appeal to Darton’s potential customers. Later in 1990, Darton became part of an international company based out of Portugal. That company was Pachancho, a 100-year-old manufacturing firm located in picturesque northern Portugal that leads a group of companies that specialize in automotive parts like cylinder sleeves, piston rings, iron castings, and specialty aluminum castings.

The Darton affiliate company is world-renowned and a major supplier to the automotive industry in Europe. All the material for Darton's cylinder sleeves is produced in the Portugal workshop, which is recognized worldwide for excellence in all forms of unique types of centrifugally cast ductile and grey iron. The focus of Darton International’s business, to this day, is the production and delivery of cylinder sleeves (also called cylinder liners).

Where is Darton Sleeves Today?

Today, Darton Sleeves continues to advance in the performance racing industry market. It is widely recognized as a leader in the engine sleeve arena, staying in the lead technologically thanks to its ability to solve problems associated with the increased power demands made by pro racers and enthusiasts alike. What’s more, Darton Sleeves is also the main sleeve supplier for the Ford SVO aluminum engine program.

Darton Sleeves is constantly evaluating current engine designs from the OEM market as a way of anticipating the needs of petrolheads and to stay ahead of the curve. The company employs a market strategy aimed at being the primary sleeve supplier of choice for small engine shops and OEMs too. To reach this goal, Darton is always hard at work researching and utilizing its state-of-the-art manufacturing technology to continually market new products such as its latest invention: the “modular integrated deck sleeve” kits. From simple cost-effective sleeve replacements to high-tech modified solutions, Darton Sleeves has what you need.

Get Darton Sleeves at Vivid Racing

Vivid Racing carries a wide array of piston sleeves from Darton Sleeves for a number of different vehicles, including cars, trucks, and SUVs. If you have any questions regarding the products listed above or about Darton Sleeves, please do not hesitate to call our expert sales team at (480) 966-3040. 

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