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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 03-28-2012, 11:27 AM   #1
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Full 204 Swap into T7

So what exactly are the issues with the swap particularly the t7 oil pan and head?
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Old 03-29-2012, 09:38 AM   #2
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Bump for Raptor Jesus.
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Old 03-29-2012, 10:03 AM   #3
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Ha. Both end plates, probably the oil filter housing, oil pan. Basically get it stripped down to the block, and move all the components over from your B2x5 lump, and you're in business.
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Old 03-29-2012, 01:01 PM   #4
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You only need to change the timing cover as far as end plates are concerned Its not a big deal to chance the Rear main seal cover, but I prefer to avoid it when possible!
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Old 03-29-2012, 01:46 PM   #5
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What about unused ports or something? I read something about that. Also the oil filter housings are the exact same. Checked in the EPC to confirm.
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Old 03-29-2012, 05:53 PM   #6
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Originally Posted by Sleepy7666 View Post
What about unused ports or something?
Well son, theres always something you can do with them!








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Old 03-29-2012, 06:52 PM   #7
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Welp the 2.3 and 2.0 blocks are exactly the same and people replace the 235 with the 234 all the time so unless someone corrects me I'd say you could use one if those swap guides.
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Old 04-01-2012, 10:44 PM   #8
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Should I just save myself time and just throw on a T7 Head? $200 for the local one...

From my EPC and WIS reading...

In mid 97 they changed the oil pump and timing cover.

They stay the same throughout the b204/b205 changeover. Eeuro agrees.


EDIT:Read how the 204 bottom end and the b205 head cause a loss of compression and bottom end power. Since I don't have the time to swap the valves and guides which is unclear if that is even worth all the effort compared to running T5 head. Running the b204 head like Turbojohnny did.

In using the B204 head I will have to overcome

Plugged coolant passages on intake side on t7: How do I address this?

Taller intake ports on t7 head:Will a dremel and carbide tip do a decent job or should I send it to a machine shop?

Coolant temp sensor on driver side of head is larger for t7: I'm thinking I won't need to do this since I have 99 era B204.
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Last edited by Sleepy7666; 04-01-2012 at 11:24 PM.
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Old 04-02-2012, 12:35 AM   #9
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Look for a real build thread come tomorrow.
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Old 04-24-2012, 10:18 AM   #10
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how is this going?
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