Darton Dry Sleeves Subaru EJ257 Impreza Sti 2.5L

Name: Darton Dry Sleeves Subaru EJ257 Impreza Sti 2.5L
Brand: Darton Sleeves
SKU: 300-031-3
Price: 504 USD
Availability: InStock

SKU

300-031-3

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Price : $504.00

1 In Stock

1 of these are currently available in stock at our Sanford, FL location.

Darton Sleeves

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Jean Colon

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Description

These Darton "DRY" sleeves are designed to replace your factory cylinder liners with a stronger, more durable, and longer lasting ductile iron surface that can hold more power, and be bored further than stock. Many engine blocks cannot take excessive boring, or high boost circumstances without failing. Switching to a Darton Dry sleeve will solve this problem.

Subaru blocks are made out of aluminum and can sometimes react adversely to heat, slightly changing clearances with temperature changes, consequently making the engine less consistent and less reliable. Inserting a Ductile Iron Dry Sleeve into an aluminum Subaru block reduces the amount of warp, and remains a consistent size and shape throught its operating heat range.

DRY SLEEVE, means that the sleeve does not contain water/coolant passges bored through the sleeves. This solid design provides a more rigid structure to prevent warping and sleeve expansion.

These sleeves come as a 99.5mm bore, and can be bored out to 102mm.

NOTE:
ALL Darton Sleeves come from the factory slightly smaller than stock bore. ALL Darton sleeves must be finish bored and honed to the specs of the pistons going into them. You CAN NOT install a piston into ANY Darton sleeve the way it arrives from the factory. This ensures that you will get the exact proper piston-wall clearance to provide a tight seal in your engine. Your machine shop already knows this, and now so do you.

Dry sleeves are named so because the sleeve body is not exposed to any cooling liquid within the block and is always installed in a block with an interference fit.

Darton manufactures ductile iron sleeves for dry installation in aluminum blocks with special surface finishes and recommends that aluminum block cylinder walls be lightly honed with "Brush Research" bumble hones prior to sleeve installation. The combination of male and female surface preparation greatly enhances heat transfer when the sleeves are installed and fit properly.

Specifications

More Information
Availability New	In Stock / Available
Note	ALL Darton Sleeves come from the factory slightly smaller than stock bore. ALL Darton sleeves must be finish bored and honed to the specs of the pistons going into them.
Shipping Weight (Dimensional)	15.000000
Clearance Sale	No
Availability	In Stock
Part Type	Cylinder Sleeves
Make	Subaru
Model	STi 04-07 GD, STi 08-14 GR, STi 15-21 VA, WRX 06-07 GD, WRX 06-07 GG, WRX 08-14 GR
Engine	EJ255, EJ257, EJ257B
Brand	Darton Sleeves
Cylinder Sleeve Type	Dry
Carb Legal	Unspecified