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Darton Seal Tight Sleeves for Subaru EJ25 (300-031-3D)
Darton Dry Seal Tight sleeves forĀ the EJ25 Subaru WRX and STi enginesĀ replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock.
A "Dry Sleeve" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.
Darton cylinder head sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.
Vehicle Fitment:
2006-2014 Subaru WRX EJ25
2004-2020 Subaru STi EJ25
Includes:
(4) Sleeves
A "Dry Sleeve" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.
Darton cylinder head sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.
Vehicle Fitment:
2006-2014 Subaru WRX EJ25
2004-2020 Subaru STi EJ25
Includes:
(4) Sleeves
| Part Number: | 300-031-3D (akaĀ 300-031-3) |
| Bore | 3.890 |
| OD: | 4.250 |
| OD 2: | 4.200 |
| Wall: | 0.180 |
| Length: | 4.800 |
| Flange Thickness: | 0.500 |
| Flange Diameter: | 4.600 |
| Flats: | 2.223 |
| Application: | EJ25 99.5mm to 102mm |
See more Darton Sleeves Products
$507.18
Darton Seal Tight Sleeves for Subaru EJ25 (300-031-3D)ā
$507.18
Description
Darton Dry Seal Tight sleeves forĀ the EJ25 Subaru WRX and STi enginesĀ replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock.
A "Dry Sleeve" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.
Darton cylinder head sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.
Vehicle Fitment:
2006-2014 Subaru WRX EJ25
2004-2020 Subaru STi EJ25
Includes:
(4) Sleeves
A "Dry Sleeve" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.
Darton cylinder head sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.
Vehicle Fitment:
2006-2014 Subaru WRX EJ25
2004-2020 Subaru STi EJ25
Includes:
(4) Sleeves
| Part Number: | 300-031-3D (akaĀ 300-031-3) |
| Bore | 3.890 |
| OD: | 4.250 |
| OD 2: | 4.200 |
| Wall: | 0.180 |
| Length: | 4.800 |
| Flange Thickness: | 0.500 |
| Flange Diameter: | 4.600 |
| Flats: | 2.223 |
| Application: | EJ25 99.5mm to 102mm |
See more Darton Sleeves Products
