EJ20 Block

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11 December 2007, 06:44 PM

Bern

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EJ20 Block

Is the EJ20 block the same on both the STI and the WRX Turbo?
Could you fit STI heads to the WRX block?

Ta

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11 December 2007, 06:53 PM

dazdavies

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Yes mate the blocks are identical. I used to have Version 5 Jap STI heads on a UK 2.0L open deck block.

Now I have the same jap sti heads on a 2.5 Semi closed deck block.

After christmas those heads will probably end up on a 2.35 closed deck block.

Daz

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11 December 2007, 06:57 PM

Bern

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Cheers for the reply mate, big help.

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11 December 2007, 10:11 PM

Bern

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If the blocks are identical what makes the STI more powerful than the WRX?
Just curious cause i don't know much about these engines...

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11 December 2007, 10:38 PM

dazdavies

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They have forged pistons so are stronger.

The extra power comes from different heads and cams and a different turbo plus some other bits and pieces.

The block cases of the 2.0L sti are the same in every way to that of the WRX.

Daz

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