Crawford Built Short Block EJ257 Subaru STI 2004-2021 | S0109 Crawford

All components engineered and manufactured by Crawford Performance have been tested for ultimate performance and maximum dependability on and off the race track. For over 2 decades they have tested all combinations of upgrades for the turbo-charged EJ20, EJ25, and more recently the new FA20 Subaru engines. Crawford has pushed these engines to there breaking points to determine which components fail at what level. From that research they have come up with forged internals to keep your engine strong enough to withstand your desired power level. 

S2: RATED UP TO 450WHP (540BHP)

•  CrawfordSPEC S2 JE Forged Pistons
• Pistons approved by the SCCA and stamped accordingly

ABOUT CRAWFORDSPEC PISTONS

Every CrawfordSPEC piston features a unique dish design, engineered by and exclusive to Crawford Performance. They have worked side-by-side with JE Pistons to create a design with the following results:

• More manifold vacuum at idle, which makes for a tighter, healthier, more efficient engine 
• Lower crankcase pressure
• More power at same boost level with same supporting mods

All CrawfordSPEC pistons are sized for the OEM bore of 99.5. 

ABOUT CRAWFORDSPEC RODS

Every CrawfordSPEC rod is designed at a specific length, engineered by and exclusive to Crawford Performance. They have worked side-by-side with Pauter Rods to create a design with the following results:

•  Longer than stock length not only increases strength but also increases the rod ratio which allows for smoother and more efficient power delivery
•  Billet vs. Forged, made with the strongest steel available in the industry: 4340 chrome-moly 

Recommended parts to be replaced:

Genuine OEM Head Gaskets

Genuine OEM Intake Manifold Gaskets

Genuine OEM Exhaust Manifold Gaskets

Genuine OEM Water Pump Gasket

Genuine OEM Oil Pump 

Genuine OEM Oil Pump Main Seal

11mm ARP Head Studs (12 per box)

NGK One Step Colder Iridium Spark Plugs

K&N Oil Filter

5 Quarts of Motul Break-In Oil (we recommend running this for at least 1000 miles)