Cylinder head numbers

Bonez2U · 01-03-2013, 08:48 PM

Need new cylinder heads for an 04 STI B25 002
1. what is the 002 number?
2. What other numbers can i use besides 002? 003/004?

Thanks

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kellygnsd · 01-03-2013, 08:52 PM

As long as it's a B25 head you'll be fine.

Bonez2U · 01-03-2013, 09:09 PM

Quote:

Originally Posted by kellygnsd

As long as it's a B25 head you'll be fine.

Thanks,,now to find a set,, motor rebuild is costing a good penny..

wrx 2011 · 12-02-2019, 07:57 PM

This is much needed info for me.
My 2011 wrx has a D25 003 and a D25 002 so I’m just wondering is it ok to have 2 heads that are D25 003?
I ask because A friend of mine has an engine laying around with good heads but I’m concerned about the numbers and if something might not match up correctly if someone could please hook me up with some knowledge it would be greatly appreciated. I just need to know the difference in the 003 and 002

kellygnsd · 12-03-2019, 12:03 PM

The second number is the casting series I believe. Just like the EJ25 blocks also have the 700, 701, 702, 703,704, etc casting series numbers, the are all essentially EJ25 blocks but from different casting runs. Same goes for the heads.

01-03-2013, 08:48 PM	#1
Bonez2U Scooby Newbie Member#: 338984 Join Date: Nov 2012 Vehicle: 2004 STI Black	Cylinder head numbers Need new cylinder heads for an 04 STI B25 002 1. what is the 002 number? 2. What other numbers can i use besides 002? 003/004? Thanks * Registered users of the site do not see these ads.

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01-03-2013, 08:52 PM	#2
kellygnsd Scooby Guru Member#: 32669 Join Date: Feb 2003 Chapter/Region: SCIC Location: Woodland Hills Vehicle: 2007 2.34LR, EFR7670 LINK G4+ hybrid STi	As long as it's a B25 head you'll be fine.

12-02-2019, 07:57 PM	#4
wrx 2011 Scooby Newbie Member#: 410321 Join Date: Jan 2015	This is much needed info for me. My 2011 wrx has a D25 003 and a D25 002 so I’m just wondering is it ok to have 2 heads that are D25 003? I ask because A friend of mine has an engine laying around with good heads but I’m concerned about the numbers and if something might not match up correctly if someone could please hook me up with some knowledge it would be greatly appreciated. I just need to know the difference in the 003 and 002

12-03-2019, 12:03 PM	#5
kellygnsd Scooby Guru Member#: 32669 Join Date: Feb 2003 Chapter/Region: SCIC Location: Woodland Hills Vehicle: 2007 2.34LR, EFR7670 LINK G4+ hybrid STi	The second number is the casting series I believe. Just like the EJ25 blocks also have the 700, 701, 702, 703,704, etc casting series numbers, the are all essentially EJ25 blocks but from different casting runs. Same goes for the heads.