|
|
|
|
Thread Tools | Display Modes |
06-14-2005, 09:36 AM | #1 |
Scooby Newbie
Member#: 68792
Join Date: Aug 2004
Chapter/Region:
VIC
Location: New Westminster, B. C. CANADA
|
EJ25 Phase I or Phase II ?
From the outside of an EJ25 block, what are the identifiable
features that differentiate a Phase I block from a Phase II block ?
* Registered users of the site do not see these ads.
|
06-14-2005, 11:22 AM | #2 |
Scooby Guru
Member#: 832
Join Date: Jan 2000
Chapter/Region:
RMIC
Location: Teh Ghetto Garage, CO
Vehicle:99 2.5RS, '85 911 '73 914 and 2012 BRZ |
If the heads are off, the easy tell is the piston dish. The phase I engines have square cut outs on the pistons. The phase II engines have little valve cut outs. Basically, the phase II has less dish. Also, if you turn the crank, the phase I pistons will clear the deck height.
If the heads are on, it is a little harder to tell. Do you have any pics? Also, do you have the applied engine code off the timing belt cover, or on the rear side of it near the flywheel? It will be a ten digit alpha numeric starting with Ej25* ***** |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
1999 OB Phase I or Phase II ? | JPC | Outback Forum | 1 | 08-04-2004 11:18 AM |
Older ej22 to ej25 Phase 1 or Phase 2? Which one? | d4d4d4d4 | Subaru Conversions | 15 | 12-24-2003 02:10 AM |
How can you tell if you have phase I or phase II block ? | zaidallas | Normally Aspirated with bolt-on Forced Induction Powertrain | 7 | 11-26-2002 06:04 PM |
How to identify Phase I or Phase II block? | Root Moose | Normally Aspirated Powertrain | 7 | 07-17-2001 03:33 PM |
What engine block do I have? Phase I or Phase II? | MY99 2.5GT | Legacy Forum | 7 | 05-03-2001 11:21 PM |