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Old 11-15-2012, 07:50 PM   #1
gymhobo
Scooby Newbie
 
Member#: 332848
Join Date: Sep 2012
Chapter/Region: SCIC
Location: La Mirada, CA
Vehicle:
2004 WRX STI

Default 2004 STi engine swap --- need suggestions

Long story short, bought a 2004 STi w/ 75k miles, blew a headgasket only 300miles after I owned it. The engine was overheating and ended up warping the block to the point where a piece of paper could fit underneath the straight edge.

So I am dropping in a new shortblock fresh from Subaru w/ 1year warranty, all new engine gaskets, valve job, copperspray gaskets, ARP head studs, decking heads.

The only other surprises I found are that I have what looks like Perrin front shifter brushings, and the infamous crack in the VF39 turbo's exhaust manifold.

I already have a new set of Kartboy front and rear shifter brushings, is it worth swaping out the old Perrin and putting in the new Kartboys? I am going to put in the rear one regardless. :thumb:



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Old 11-16-2012, 03:29 PM   #2
Elky
Scooby Newbie
 
Member#: 303906
Join Date: Dec 2011
Chapter/Region: NESIC
Location: Porter Square, Slumerville
Vehicle:
2011 WRX Sedan
Spark Silver Metalic

Default

Quote:
Originally Posted by gymhobo
Long story short, bought a 2004 STi w/ 75k miles, blew a headgasket only 300miles after I owned it. The engine was overheating and ended up warping the block to the point where a piece of paper could fit underneath the straight edge.

So I am dropping in a new shortblock fresh from Subaru w/ 1year warranty, all new engine gaskets, valve job, copperspray gaskets, ARP head studs, decking heads.

The only other surprises I found are that I have what looks like Perrin front shifter brushings, and the infamous crack in the VF39 turbo's exhaust manifold.

I already have a new set of Kartboy front and rear shifter brushings, is it worth swaping out the old Perrin and putting in the new Kartboys? I am going to put in the rear one regardless. :thumb:
Are you using a new set of stock pistons or upgrading?

And I would replace the Perrin bushings. They could be a bit worn and it can't hurt to put in freshies.
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Old 11-16-2012, 05:09 PM   #3
jthatch12
Scooby Specialist
 
Member#: 321715
Join Date: May 2012
Chapter/Region: Tri-State
Location: Philly/SJ
Vehicle:
03 Big 16G WRX
PSM

Default

Bushings are bushings. Keep the perrin ones in and sell the front set of kartboy for like 30 bucks on here.
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Old 11-16-2012, 06:42 PM   #4
06sc0obySTI
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Member#: 337620
Join Date: Nov 2012
Chapter/Region: Tri-State
Location: new jersey
Vehicle:
02 wrx
world rally blue

Default

well how bad are the bushings? if they are in pretty decent condition then i would say they would be ok but if they look warn put the news in since you have them already
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