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Old May 3, 2009 | 08:12 PM
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Default Compatabilty question

Will a set of MY99 Type R heads fit on a 05 STI short motor?

Also is there any difference between the 05 WRX and STI short motors?
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Old May 3, 2009 | 09:17 PM
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Anyone?
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Old May 3, 2009 | 09:22 PM
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internals are diffrent sti is semi forged i have a version 5 block on 94 heads this all the ej20 blocks and heads marry up. you can even run a 2.5 block on ej20 heads so think your fine 2 do that m8
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Old May 3, 2009 | 09:24 PM
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Excellent thanks. Do you know if they did a semi closed WRX or are all the semi closed blocks from STIs?
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Old May 4, 2009 | 12:53 PM
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From: Slowly rebuilding the kit of bits into a car...
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STI block has oil feeds to the AVCS system on the STI heads.

HTH

dunx
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