Subaru EJ255 Crate Engines

The Single AVCS Subaru EJ255 Crate Engine is one of our most popular builds. These engines range from 2004-2007. We offer 4 stages of builds, for any application. All of our builds use pressure tested, torque plate honed, and CBN decked cases from SubaruMachine.com, with upgrades available These are USDM Builds, but we can rebuild a supplied JDM core as well. These builds include new OEM Cam Sprockets X2 and Cam Hex Bolts; along with other key replacement parts. The pricing you see below is for the rebuild (Parts and Labor) only ( Plus Core). We do not offer exchange service, as every core is unique and we unfortunately are not a core supplier. Freight Pickup Service Offered, simply secure engine to a wood pallet.

Quick Turnaround Crate Engine - Spec Rebuild w/ Upgrades

OEM Shortblock w/ 1 Year Subaru Warranty w/ New OEM Head Castings

Core Required for all timing components, valvetrain, cams, phasers, etc. These must transfer from your core.

Starting at $7,295 + Bad Core

New OEM EJ255 Short Block
New OEM Head Castings
New OEM Main Bolts
OEM Head Gasket / Complete Gasket Kit
ARP Head Studs
Reconditioned Stock Valves
Tested / Cleaned Valve Springs
Tested / Cleaned Spring Retainers
New OEM Oil Pump
New AISIN Water Pump
New AISIN Racing Timing Belt
New OEM Cam Bolts and Sprockets
Aftermarket Camshafts Optional
Porting Optional
--RECONDITIONED PARTS---
YOUR CAMS
YOUR VALVES
YOUR LIFTERS
YOUR SPRINGS/RETAINERS
YOUR SPRING SEATS/RETAINERS
YOUR CAM PHASERS
*(Unless Need Replaced)

This engine plan is our best solution for customers who are at the dealership facing a $15,000 bill and want to save a few thousand dollars. We can arrange core pickup of your old engine, and ship back to you the finished engine fast ! Usually the turn around time for this build with shipping ( during 2023-24) is only 5 weeks. Soon, we will have them in stock for even faster turn around. For now, 5 short weeks is reasonable!

We use a new OEM short block, which saves us time in the machine shop. These also carry a OEM warranty, which is not offered on any performance rebuild. New OEM head castings are included, because 90% of the cores have bad cam journals or even worse. Valve train parts are almost always salvageable, or we replace them with OEM or better when they do not pass inspection or reconditioning. Timing sprockets are reconditioned or replaced. Porting adds only 2-5 days to the process, as all custom work needs to be scheduled into the shop.

BALL PARK ESTIMATE:

Freight Pickup = $300

Engine = $6295

Freight Drop Off = $300

TOTAL PRICE = $6895

We are ready to setup this build and get you on the road ASAP.

Call 269-282-8067 or email SynergyEngines@Gmail.com with your information.

(Include Name, Year/Make/Model/VIN, Pickup Address, and Phone Number)

Stage 1 Crate Engine

Starting at $4,995 + Good Core

Stage 3 Crate Engine

Starting at $7,995 + Good Core

Stage 2 Crate Engine

Starting at $5,995 + Good Core

Stage 5 Crate Engine

Starting at $9,995 + Good Core

Additional Parts for Subaru EJ255

Brian Crower Adjustable Cam Gears
Supertech Bronze Valve Guides
OEM STI Oil Pan / Conversion
Nitto 2.2 Stroker Rotating Assembly
ARP Stainless Exhaust Studs
Killer B Motorsports Oil Pickup Tube
Killer B Motorsports Oil Pan Baffle
OEM Short Block +$400
OEM Water Pump +$75~
OEM Oil Pump +$200~
OEM Timing Belt/Sprockets +$200~
OEM Cam Gears +$60 Each
OEM Head Castings +$700~ Each

Additional Services for Subaru EJ255

COMPLETELY RECONDITIONED CASE!
Torque Plate Honing INCLUDED!
Line Honed Mains .002" INCLUDED!
Pinned Deck Conversion +$200
O-Ring Conversion +$120
Oversize Head Studs +$120
Running Stand Break In +$400
Engine Dyno Pro Tuning (Call)
Ceramic Coated Pistons / Skirts +$120
Ceramic Coated Combustion Chambers +$120
Dynamic Balancing +$220
CNC Porting +800
Newen CNC Profile Seat +500
Darton Wet Sleeves +550+Labor
Line Boring and Honing +500

EJ255/7 Info:

DOHC 16-valve turbo with sodium-filled valves originally designed for North American market, now sees usage in some European Imprezas and Legacies destined for Australia and South Africa. Power 210–265 hp (157–198 kW; 213–269 PS)

EJ257 Version 1: Used in the 2005 and 2006 Legacy, as well as the 2004 and 2005 Forester. This engine uses the same shortblock and heads like EJ257 in US 04-06 STI.[8]

EJ255 Version 2: Used in the 2006-2008 WRX, the 2007+ Legacy, and the 2006+ Forester. This is the newer AIS equipped EJ255, which uses a slightly different AB630 shortblock, as well as the AB820 heads. The only difference in the shortblock of this EJ255 and the 04-06 EJ257 is the pistons. They are of nearly the same construction, but have a slightly larger dish volume. Subaru lists the CR at 8.4:1 vs 8.2:1 for the 04-06 STI engine.

Usage in North America:

Impreza (WRX): 2006–2014
Forester XT: 2004–2013
Legacy GT: 2005–2012
Outback XT: 2005-2009
Baja Turbo: 2004 - 2006
SAAB 9-2X: 2006 only.

Usage in the rest of the world:

Legacy/Outback: 2007–present
Impreza: 2005–present
Forester: 2005–2010.

EJ257 Info

EJ257 engine

DOHC 4 valves per cylinder fuel feed by Sequential Multipoint Fuel Injection (SMPFI) turbo.[9] Originally designed for the North American Impreza STI in 2004 with AVCS and DBW. 2004-2006 STI model used the same shortblock, b25 heads, and valvetrain as EJ255 in MY 2005-2006 Legacy GT and the same block as the 2004-2005 Forester XT. Later years used a revised block, piston and heads. Notably, Dual-AVCS w25 heads appeared in 2008 STI. The engine has a redline of 6700 rpm.

Usage:

US Market Impreza WRX STi MY 2004~2007 300 bhp (304 PS; 224 kW) @ 6000 rpm (New SAE standard) and 407 N⋅m (300 lb⋅ft) @ 4000 rpm of torque.[10]
US Market Impreza WRX STI MY 2008~2017 305 bhp (309 PS; 227 kW) @ 6000 rpm (New SAE standard) and 393 N⋅m (290 lb⋅ft) @ 4000 rpm of torque.[11]
US Market Legacy GT/Ouback XT MY05~06 250 bhp (253 PS; 186 kW) (New SAE standard)
US Market Forester XT MY04-05 210 bhp (213 PS; 157 kW)
Asian, European Market Impreza WRX STi 05~present 280 bhp (284 PS; 209 kW), 40 kg⋅m (392 N⋅m; 289 lbf⋅ft)

Cylinder Head Casting Info

B25 Castings 56CC (8.2/1 CR w EJ257 Pistons)

(2004 STI, 04-05 Forester XT, 05-06 Legacy GT)

11039AB650 -- Cylinder Head Case RH
11063AB120 -- Cylinder Head Case LH

D25 Castings 51CC (8.4/1 CR w/ EJ255 Pistons)

(2005 - 2006 STI, 07+ EJ255s)

11039AB910 -- Cylinder Head Case RH
11063AB330 -- Cylinder Head Case LH

V25 Castings 56CC (8.2/1 CR w/ EJ257 Pistons)

(2007 STI)

11063AB280 -- Cylinder Head Case LH
11039AB860 -- Cylinder Head Case RH

W25 Castings 56CC (8.2/1 CR w/ EJ257 Pistons)

(08+ STI)

B25 casting (04-06 USDM STi) 36mm intake, 32mm exhaust 57cc chamber.

D25 casting (06-07 USDM WRX) 36mm intake, 32mm exhaust 50cc chamber.

S20 casting (02-05 USDM WRX) 36mm intake, 32mm exhaust 49.5cc chamber.

Phone: 269-282-8067