XTREME SUBARU POWER
 

XCCELERATION PERFORMANCE ENGINES

Semi-Closed and Closed Deck

EJ25, EZ30, FA20


Xcceleration can supply high performance engines and engine parts from a short block (no heads) to a full long engine (with heads) ready for installation.

Note: All engines specs are subject to change without notice. All orders will be adjusted automatically to any new pricing.

All Engine Modifications are for Off-Road Use Only. All cams, heads and short blocks are custom built and all are considered racing parts, therefore do not carry any warranty period. In no event shall Xcceleration.com be liable for any warranty, labor or service charges whatsoever, as outlined in our Terms and Conditions section.


Please be patient, certain parts are made per order and require time to manufacturer. All parts will be immediately shipped as they become available. All prices do not include any core charges, shipping, taxes or installation charges. All orders are considered 'Special Order' and are paid in full at time of order via wire transfer.


 

 

EJ20, EJ25, EJ25B Dual AVCS

Street/Race Cams:

New Cams, Not Regrinds

 

 

EJ20, EJ25, EJ25B Dual AVCS Street/Race Cams

Race and radical Street/Strip. Rough idle.

Requires compatible ECU upgrade.

Specs:
RPM Range: 1500 to 8500+
Advertised Duration (Seat):  Int:   268, 272, 282 /   Exh: 268, 272, 282
Duration @ .50":                  Int:  225, 230, 240 /   Exh: 225, 232, 240
Gross Lift:                           Int:  .425, .425, .443" / Exh: .409, .407, .441"


*$1,600. per set only, plus shipping


*Price does not include shipping. Please be patient, each engine is made per order and takes about 2-4 weeks to deliver.


 

Valve Spring / Retainer upgrade kit:

 

Valve Spring / Titanium Retainer kit

for EJ20 or EJ25.

Valve train kit features strengthened steel valve springs and titanium retainers, designed for use in the cam applications with increased lift and higher revs. OEM valve springs just aren't strong enough to handle cams with increased lift, this kit requires zero machine work for installation and is an affordable solution to similar setups. Kit includes 16 springs & 16 titanium retainers.

Specs:
Seat: 1.420" @ 60 lbs
Nose: 1.000" @ 161 lbs
Coil bind: 0.860"

 


*$435. per set, plus shipping


*Please be patient, takes about 4 weeks to deliver.

Big Valve STi

DOHC Cylinder Head Packages

No Core Charge

 

Xcceleration Engineered

Big Valve / Super Hot Cam STi

DOHC Cylinder Head Package

Designed for Intense

LOW and MID RANGE TORQUE!

Intake: 22% Increased Flow (max)

Exhaust: 41% Increased Flow (max)

These Heads are Used in Our 800hp Engines


*$6,350. (no core charge)


 

*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4 weeks to deliver. All shipping is the responsibility of the customer. 


 

Big Valve WRX

DOHC Cylinder Head Packages

No Core Charge

 

Xcceleration Engineered

Big Valve / Super Hot Cam WRX

DOHC Cylinder Head Package


Designed for Intense

LOW and MID RANGE TORQUE!


Intake: 22% Increased Flow (max)

Exhaust: 41% Increased Flow (max)

These Heads are Used in Our 800hp Engines


*$6,350. (no core charge)


 

*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4 weeks to deliver. All shipping is the responsibility of the customer. 


 

FA20 and EJ25 Closed Deck Block Conversion

closed deck


EZ30 Closed Deck Block Conversion

EZ30 Closed Deck

 

FA20 and 2.5L Closed Deck Block Case Conversion

Strongest Block


Through our custom process we are able to create a closed deck block for high boost and horsepower applications. The Strongest available.


*$3,200.

Converted EJ25 Closed Deck block case

*Please be patient, each conversion takes about 2-4 weeks. Shipping extra.




3.0L Closed Deck Block Case Conversion

Strongest Block


*$3,900.

Converted EZ30 Closed Deck block case

*Please be patient, each conversion takes about 2-4 weeks. Shipping extra.




EJ25 WRX STi Nitrited Crankshaft

2008 - 10 STI


Nitrided Crankshaft

2008 - 10 STI

Looking to build your own super motor for big power?

Use an STi Nitrided Crankshaft to start with, then add pistons, rods, and Close Deck to your motor.


*$990.


*Please be patient, each engine takes about 2 weeks to deliver.

 

Billet Crankshafts Subaru WRX STI 2.5L EJ25

 

75, 79 or 83mm  Billet Crankshafts

Subaru WRX STI 2.5L EJ25

Increased engine performance often means increased engine speed and load. Original factory crankshafts may not be able to withstand the added stress resulting in catastrophic failure. Billet crankshafts are machined from ultra strong steel and are engineered to endure the harshest conditions and have been tested to withstand over 1000HP! Features include superior lubrication, profiled counterweights and added strength. Crankshafts are made from the finest, aerospace grade 4340 steel billet material. CNC machined on state of the art, 5 axis Mazak Integrex 300-IV CNC machines to exacting tolerances (.0001"). Every crankshaft features large radius journals that add rigidity for high horsepower, high boost, high rpm applications. Gun drilled, CNC ground oil holes feature a smooth surface for extra oiling, tear dropped for added oil scoop, cross drilled for priority main feeding to the rods and micro polished to a mirror finish for optimum bearing lubricity. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced windage through the crankcase creating less oil resistance for better rpm potential.

*FEATURES* * *4340 Forged Steel* - Toughness and resistance to impact * *Core hardened using nitride hardening process* - Less chance of running deformation * *Magnetic Particle Inspection* - Ability to see flaws that may cause s stress riser * *Straight oiling to journals* - Alleviates issues with rod bearing failures * *Stress relieved* - No bending or distortion in the engine. * *Exceptional journal finish* - Longer bearing life * *Wide Pin-End Widths* - Supports wrist pin to minimize failures * Reluctor wheel included (where applicable) * Concentric journal machining * Cam-cut for improved performance * Gun-drilled rod and main journals * Exceptional journal finish * Crank keyways cut to match OEM locations.


*$3,100.


*Please be patient, each engine takes about 2-3 weeks to deliver.

EJ25 - 2.5L STi Engine Block

 

EJ25 - 2.5L STi Engine Block

Looking to build your own super motor for big power? Use an STi block to start with, then add pistons, rods, crank and T-sleeves.


*$1,900.


 

*Please be patient, each engine takes about 2 weeks to deliver.

OEM EJ25 - 2.5L STi Short block

OEM EJ25 - 2.5L STi Short block

Looking to build your motor for insane amounts of power? Use an STi short block to help bulletproof your high-horsepower goal! Comes with pistons, rods and crankshaft.


*$3,300.


 

*Engine gasket kit not included, additional cost.

Please be patient, each engine takes about 3 weeks to deliver.


EJ25 Performance Engine:

Stage1

Semi-Closed Deck Short Block



Xcceleration

Semi-Closed Deck Short Block Stage1

includes:

1. Our Block -  (no core charge)
2.
Forged Pistons
3. Performance Head Gaskets

4. 1/2'' head studs with machining
5. H-Beam Tuff Rod upgrade
6. Assembly

Choice of : 8.2:1, 9:1, 10:1 compression


EJ25 Engine - *$5,900.


*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4-8 weeks to deliver. All shipping is the responsibility of the customer.



EJ25 Closed Deck

Short block Stage1

closed deck 2.5 engine


Xcceleration

Closed Deck Short block Stage2

includes:

1. Our Custom Conversion Closed Deck Block (no core charge)
2.
Forged Pistons
3. H-Beam Tuff Rod upgrade
4. 1/2'' head studs with machining
5.
Performance Head Gaskets
6. Assembly

Choice of : 8.2:1, 9:1, 10:1 compression


EJ25 Engine - *$8,900.


*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4-8 weeks to deliver. All shipping is the responsibility of the customer.


 


EJ25 Closed Deck Short Block

"Strongest" Stage2

closed deck 2.5 engine

 

Xcceleration

Closed Deck Short Block

includes:

1. Our Custom Conversion Closed Deck Block (no core charge)
2. New STi Billet Crankshaft
3.
Custom Forged Pistons
4. HD Piston Rings

5. Light Weight, hollow piston Pins (with Clips)
6. Billet con rod set w/ARP bolts
7. Heavy Duty Crankshaft Bearings
8. Heavy Duty Connecting Rod Bearings
9. Cylinder Boring
10. Cylinder bore measurement
11. Milling (decking)
12. Crank Grind to achieve ideal tolerances
13. Rotating assembly balancing (Crank/Rod/Pistons)
14. Rod bolt stretch measurement
15. Dry assembly with plastic gauge for bearing tolerance measurement post-check
16. Deck height measurement to confirm exact quench clearance
17. Oil galley modification for improved lubrication (pre-lubed)
18. Assembly
19. ARP Head Stud Kit
20.
Custom  High Pressure Head Gaskets


EJ25 Engine - *$13,900.


*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4-8 weeks to deliver. All shipping is the responsibility of the customer.

 



EJ25 Big Valve / Hot Cam

Semi-Closed Deck Long block

 

Xcceleration

Custom Semi-Closed Deck Long block includes:

1. Our Custom Conversion Closed Deck Block (no core charge)
2.
Forged Pistons
3. H-Beam Tuff Rod upgrade
4. 1/2'' head studs with machining
5.
Performance Head Gaskets
6. Assembly

Choice of : 8.2:1, 9:1, 10:1 compression

Xcceleration Big Valve / Hot Cam Cylinder Head Package

1. Our Heads - Disassembly and cleaning
2. Port refinishing and bowl contouring
3. Custom angle Valve Seat Machining
4. Hand Blending of the Port/Valve Seat Juncture
5. Combustion Chamber Cleaning
6. Valve resurfacing using the 'center-less' method which also measures the stem and head run-outs
7. Exhaust port balancing,
8. Milling of the cylinder head (depth is appropriate for application and combustion chamber work)
9.
Stage3 Camshafts
10. Heavy Duty Valve Springs
11. Titanium Retainers
12. New Subaru Valve Seals
13. New Subaru Cam Seals
14. Assembly of the Cylinder Head
15. Setting of the Valve Lash
16. Head porting


Big Valve / Hot Cam Semi-Closed Deck

EJ25 Long block


*$13,900.
*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4-8 weeks to deliver. All shipping is the responsibility of the customer.

EJ25 DOHC High Output Engine:




EJ25 Big Valve / Hot Cam

"Closed Deck" Long Block

For those wanting

MAXIMUM TORQUE

MAXIMUM STRENGTH


THIS IS THE LONG BLOCK

WE USE IN OUR 800HP

ENGINES

 

 

Xcceleration

Custom Big Valve / Hot Cam / Closed Deck

Long Block

Short Block includes:

1. Our Custom Conversion Closed Deck Block (no core charge)
2. New STi Billet Crankshaft
3.
Custom Forged Pistons
4. HD Piston Rings

5. Light Weight, hollow piston Pins (with Clips)
6. Billet con rod set w/ARP bolts
7. Heavy Duty Crankshaft Bearings
8. Heavy Duty Connecting Rod Bearings
9. Cylinder Boring
10. Cylinder bore measurement
11. Milling (decking)
12. Crank Grind to achieve ideal tolerances
13. Rotating assembly balancing (Crank/Rod/Pistons)
14. Rod bolt stretch measurement
15. Dry assembly with plastic gauge for bearing tolerance measurement post-check
16. Deck height measurement to confirm exact quench clearance
17. Oil galley modification for improved lubrication (pre-lubed)
18. Assembly
19. ARP Head Stud Kit
20.
Custom  High Pressure Head Gaskets

Choice of : 8.2:1, 9:1, 10:1 compression


Xcceleration Big Valve

Hot Cam DOHC Cylinder Head Package

1. Our Heads - Disassembly and cleaning
2. Port refinishing and bowl contouring
3. Custom angle Valve Seat Machining
4. Hand Blending of the Port/Valve Seat Juncture
5. Combustion Chamber Cleaning
6. Valve resurfacing using the 'center-less' method which also measures the stem and head run-outs
7. Exhaust port balancing,
8. Milling of the cylinder head (depth is appropriate for application and combustion chamber work)
9.
Stage3 Camshafts
10. Heavy Duty Valve Springs
11. Titanium Retainers
12. New Subaru Valve Seals
13. New Subaru Cam Seals
14. Assembly of the Cylinder Head
15. Setting of the Valve Lash
16. Head porting


Big Valve / Hot Cam EJ25 Long Block


*$20,900.

*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4-8 weeks to deliver. All shipping is the responsibility of the customer.





EZ30r Closed Deck Short Block

"Strongest"

EZ30 Closed Deck




Xcceleration

Custom EZ30r Closed Deck

Short Block includes:

1. Our Custom Conversion Closed Deck Block (no core charge)
2. New  Crankshaft
3.
Custom treat crankshaft for hardness
4. Custom billet 'H' beam rods

5. Custom Race Rod Bearings
6. Oem stock mains
7. Custom Forged Pistons 8.5:1
8. Bore closed deck engine block
9. Assemble closed deck short block
10. Balance and rotating
11. O rings and rear seal
s

Choice of : 8.5:1  compression


EZ30r Engine - *$13,900.


*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4-8 weeks to deliver. All shipping is the responsibility of the customer.




EZ30r Closed Deck Long Block

"Strongest"

EZ30 short block


Xcceleration

 Custom EZ30r Cylinder Head / Closed Deck

Long Block

Short Block includes:

1. Our Custom Conversion Closed Deck Block (no core charge)
2. New  Crankshaft
3.
Custom treat crankshaft for hardness
4. Custom billet 'H' beam rods

5. Custom Race Rod Bearings
6. Oem stock mains
7. Custom Forged Pistons 8.5:1
8. Bore closed deck engine block
9. Assemble closed deck short block
10. Balance and rotating
11. O rings and rear seal
s

Choice of : 8.5:1  compression


Xcceleration

Custom EZ30r Cylinder Head Package

1. Our Heads - Disassembly and cleaning
2. Port refinishing and bowl contouring
3. Custom angle Valve Seat Machining
4. Hand Blending of the Port/Valve Seat Juncture
5. Combustion Chamber Cleaning
6. Valve resurfacing
7. Exhaust port balancing,
8. Milling of the cylinder head (depth is appropriate for application and combustion chamber work)
9. Camshafts
10. Valve Springs
11. Retainers
12. New Subaru Valve Seals
13. New Subaru Cam Seals
14. Assembly of the Cylinder Head
15. Setting of the Valve Lash
16. Head porting


Custom EZ30r Cylinder Head / Closed Deck Long Block


*$22,900.

*Price does not include processing fees, shipping, and duty. Please be patient, each engine is made per order and takes about 4-8 weeks to deliver. All shipping is the responsibility of the customer..




FA20 Closed Deck Short Block

"Strongest"

closed deck 2.5 engine

Xcceleration

Closed Deck Short Block

includes:

1. Our Custom Conversion Closed Deck Block (Your Core: Disassembly /  cleaned)
2. Custom Forged Pistons FA20DIT 10.6:1 CR
3. Custom Performance FA20 Rod Bearings
4. Custom Performance Main Bearings
5. Rotating Assembly Balancing
6. Bore/Power Hone W/ Torque Plates
7. Carrillo FA20 Pro-H 3/8 CARR Bolt Connecting Rods (Set of 4)
8. Subaru OEM FA20T 2015+ WRX Gasket Set
9. Machine Block For 1/2" Head Studs
10. WPC Treatment for H4 Crankshaft Friction Reduction Process
11. WPC Treatment for Wrist Pin
12. Piston Crown And Skirt Coating
(Set of 4)
13. Ultimate FA20 Oil Pickup


FA20 Engine - *$14,900.



FA20 Cylinder Head Package

1. Your  Heads  -  ( Your Cores:  Disassembly /  cleaned )
2. Port refinishing and bowl contouring
3. Custom angle Valve Seat Machining
4. Hand Blending of the Port/Valve Seat Juncture
5. Combustion Chamber Cleaning
6. Valve resurfacing using the 'center-less' method which also measures the stem and head run-outs
7. Custom Intake and  Exhaust Valve Guides
8. Single Beehive Spring Kit
9. 1/2 " head studs

10. Chromoly Seats
11. Titanium Retainers
12. New Subaru Valve Seals
13. New Subaru Cam Seals
14. Assembly of the Cylinder Head
15.
Treatment for 4 Cyl Camshaft Set


FA Cylinder Heads only *$4,900.


FA Closed Deck Long Block  *
$19,800.

*Price does not include processing fees, shipping, and/or duty. Please be patient, each engine is made per order and takes about 4-6 weeks before ready to deliver. All shipping is the responsibility of the customer.



*Delivery Schedules

All above prices do not include shipping or duty, which will be billed directly to the customer. Call for details. All orders are considered 'Special Order' and are paid in full at time of order via wire transfer.


All engine modification components have been designed and are intended for off-highway application. These components are for racing vehicles only, which may never be used on public roads and highways. Federal and many state laws prohibit the removal, modification, or rendering inoperable of any device or element of design affecting vehicle emission or safety in a vehicle used on public highways. Violation of such laws may subject the owner or user to a fine or penalty. Installation of this part may void the warranty coverage, if any, on your vehicle. Vehicles modified by the use of performance parts may no longer be lawfully used on public highways. User assumes all cost and risks associated with these items.

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