Just because it’s the most affordable Crawford Shortblock in the “S” series doesn’t mean that this baby can’t pack a punch. The S2 is engineered around a new EJ257 semi closed deck block that incorporates a counterweighted and balanced 79mm forged STI crankshaft, forged STI rods, and Crawford Performance designed 99.5mm offset forged pistons. Incorporated into the block are high performance STI main and rod bearings and STI piston rings. These Genuine STI components allow for maximum safety and reliability. No cheap knock off parts here. To keep with our high quality standards, we use Crawford offset wristpins to decrease the piston noise associated with forged pistons.

The final compression ratio of this motor is 8.3 to 1.

- New 2.5-Liter Semi-Closed Turbo Block
- New Subaru STI Forged Crank
- New Subaru STI Forged Rods
- New STI High Performance High Mileage Piston Rings
- CP-Designed Lightweight Forged Pistons
- CP-Designed Case Hardened and Heat Treated Wrist Pins
- Professionally Balanced and Assembled

The most versatile and most popular Crawford Shortblock in the “S” series just happens to be the S3L-I. It’s engineered around a new EJ257 semi closed deck block that incorporates a counterweighted and balanced 79mm forged STI crankshaft, longer Crawford Performance Billet I-beam rods and Crawford designed 99.5mm offset forged pistons. Incorporated into the block are high performance STI main and rod bearings and STI piston rings. These Genuine STI components allow for maximum safety and reliability. No cheap knock off parts here. To keep with our high quality standards, we use Crawford offset wristpins to decrease the piston noise associated with forged pistons. It is helpful to note, the Crawford Billet I-beam rods serve two purposes; 1) to increase the rod ratio which allows for smoother and efficient power delivery 2) the I-beam rods used in this motor are hefty strong rods designed to withstand the power produced with race fuel & high boost levels.

The final compression ratio of this motor is 8.3 to 1.

- New 2.5-Liter Semi-Closed Turbo Block
- New Subaru STI Forged Crank
- New STI High Performance High Mileage Piston Rings
- CP-Designed Forged and Strengthened Long Rods
- CP-Designed Forged Pistons
- CP-Designed Case Hardened and Heat Treated Wrist Pins
- Professionally Balanced and Assembled

With the introduction of the new and improved version of the 84mm billet crank (lighter and stronger than before) we have rebadged the the name to a 2.7 liter engine, capable of powering on the torque where the competition can not. To prove the potential, with a wider power band (more area under the curve) and more torque we competed at the 2009 Modified Magazine Shootout. Down over 60 whp to the closests competitors engine but we went out and set a NEW track record and won the Time Attack.

The world’s largest commercially available displacement STI stroked block with an 84mm crank, 3 mm larger than the nearest competitor.

Where some engines might be able to make full boost at 100+ RPM's faster than stock, we not only improve upon that by 300 RPM's more (therefore 400+ RPM's faster than stock) but also offer a lightning quick throttle response and boost response. Offering a broader power band and more low end torque this is what will give you the edge, wins races and even gives you that kick in the pants feel when driving the car around town.

Crawford Performance billet cranks are the center piece of these masterpieces. While these engines can outperform any Subaru 2.5-liter engine based on shear displacement, the precise design and professional balance and assembly is what establishes the bar above all others. Vastly improved throttle response, Crawford-guaranteed faster turbo spooling, and massive power gains have made this package almost unbeatable time and time again.

This CP-proven technology allows for great response, reliability, and drivability, ensuring top-notch street performance on the way to and from the track.

This high end performance piece not only talks a big game, but has the pedigree to back it up. It is the same motor that powers the famous 06 Crawford widebody Time Attack car, which incidentally has won 19 of the last 21 events it has entered. This power plant is built around a brand new EJ257 semi closed deck block. It incorporates Crawford’s exclusive counterweighted 84mm Billet Stroker Crankshaft, longer and beefier Crawford Billet I-beam rods, and Crawford’s 99.5mm custom offset forged pistons. We use the High performance STI main and rod bearings in this block along with the STI piston rings. These Genuine STI components allow for maximum safety and reliability. No cheap knock off parts here. To keep with our high quality standards, we use Crawford offset wristpins to decrease the piston noise associated with forged pistons.

The final compression ratio of this motor is 8.3 to 1.

S5 2.7L Stroker Short Block:
- New 2.7-Liter Semi-Closed Turbo Block
- New STI High Performance High Mileage Piston Rings
- CP Billet 84mm Stroker Crank
- CP-Designed Billet Long Rods
- CP-Designed Billet Lightweight Pistons
- CP-Designed Case Hardened and Heat Treated Wrist Pins
- Professionally Balanced and Assembled