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Hi,

Does anyone know if a 01 P1 engine will fit straight into my Jap Sti my99?

Will it run on same ecu etc?

Cheers

Need a bit more info on what exactly you're going to do. When you say engine do you mean short block, long block full engine and sensors etc.

The cars are virtually the same so the devil is in the detail.

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Need a bit more info on what exactly you're going to do. When you say engine do you mean short block, long block full engine and sensors etc.

The cars are virtually the same so the devil is in the detail.

Would have been the full engine, pointless now as he's sold it, Cheers anyway.

So back to plan 1 - rebuild mine, Anybody got a Sti piston as i've melted #4 everyone seems to have wrx but cant find a Sti 1.

cylinder is lightly marked but i've been assured it will hone out?? anyone ever tried this?? as someone else told me never works with a scooby??

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What piston letter?

Look at the piston your replacing, it will have a letter stamped on it and you'll need to ensure you Subaru replacement has the same stamp.

"R"

Yes it sure does it's a "B"

Starting to think about 2.5 bottom end anyone got a good source for them? 1 on E-bay but not new, But has uprated pistons and rods.

Any info would be appreciated.

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I thought both the Ver5/6 blocks and the P1 block were the same as well Playsatan until i was offered a broken P1 block from a Subaru dealer which had came in for replacement under warranty (some years ago). That was the 1st time i seen a 2.0 semi-closed deck block which i thought was odd. From what i believed at the time, the Ver5/6 Sti blocks of 99-00 vintage are open deck, the semi-closed version not coming into play until ver7 Sti.

I've seen a number of rebuilds which have shown the Sti block to be open deck on 99-00 year.

The problem now is we are some 8 years down the line since these cars were new and who knows what the history is with some of them in regards to engine changes they've had.

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Agreed, I know they ran out parts on some models so you cannot be sure what you've got. I suppose my block may have been swapped out at some point also.

The pistons were sti 5 though, what design was in the P1 block.

I could take a guess at what was in it Playsatan, but it was that long ago now i can't remember. Might have been different if i had bought it! lol

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