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 92mm bore, and can be bored out to 96mm. 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
Shipping Weight (Dimensional)
17.000000
Clearance Sale
No
Availability
Call
Part Type
Cylinder Sleeves
Make
Subaru
Engine
EJ22
Brand
Darton Sleeves
Cylinder Sleeve Type
Dry
Carb Legal
Unspecified
Product Flags
sale
Shipping Label
Free Shipping
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