bobglaub Posted September 3, 2017 Share Posted September 3, 2017 I'm sure this has been discussed before, but I didn't see it anywhere. I own a 2005 STI, and a 2005 legacy GT wagon. They're both awesome cars, but I don't care for paying for insurance on 3 cars. I also own a 1999 legacy L sedan as my "old faithful grocery getter. I know it would be a lot of work, but what would be required to swap the power plant and drivetrain from the STI to the lgt? Wiring harness would likely need to be redone from the STI to handle the extra length. That's whatever. I'm talking engine, transmission, differentials, axles, hubs, everything. What parts wouldn't fit, what would? If the thread exists please point me there. I haven't fully looked over at nabisco yet. Link to comment Share on other sites More sharing options...
xtea Posted September 3, 2017 Share Posted September 3, 2017 Why? They have the same engine. Link to comment Share on other sites More sharing options...
Darth SpecB Posted September 3, 2017 Share Posted September 3, 2017 I agree you would probably be better off building your current set up. The 6 speed swap would be the only thing I would justify. Sent from my SM-G950U using Tapatalk Link to comment Share on other sites More sharing options...
relative4 Posted September 3, 2017 Share Posted September 3, 2017 Why? They have the same engine.Been meaning to ask about this. If they have the same block and heads, what was done differently to produce such different performance? Link to comment Share on other sites More sharing options...
xtea Posted September 3, 2017 Share Posted September 3, 2017 Been meaning to ask about this. If they have the same block and heads, what was done differently to produce such different performance? Everything else. Link to comment Share on other sites More sharing options...
bobglaub Posted September 3, 2017 Author Share Posted September 3, 2017 My understanding was the heads on the stinare different. My legacy needs a new short block, so I figured if it has to come out anyway, may as well drop in the STI engine. Then my brain went, well, why not swap everything? Link to comment Share on other sites More sharing options...
Max Capacity Posted September 3, 2017 Share Posted September 3, 2017 Do what I did, get a new ej257 short block to replace the ej255, I did have some porting done on my stock heads down in the valve pocket area, vf52 turbo with a great tune and Moore Performance Blast plates for the 5mt. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
xxBLOOD88SHOTxx Posted September 3, 2017 Share Posted September 3, 2017 Is the STI wrecked? If it isn't why gut that car? Just put a new shortblock in the LGT and sell the STI. Link to comment Share on other sites More sharing options...
bobglaub Posted September 3, 2017 Author Share Posted September 3, 2017 STI isn't wrecked. I may do what Max said, I've looked into it. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 3, 2017 Share Posted September 3, 2017 See my click here link in my sig. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
JustCallMeNick Posted September 4, 2017 Share Posted September 4, 2017 STI's hold their value. Sell the STI and get a new short block for the LGT Wagon. Or keep and build the STI and hang onto the L sedan as an inexpensive backup car for when the STI is undergoing performance mods or repairs. Link to comment Share on other sites More sharing options...
bobglaub Posted September 4, 2017 Author Share Posted September 4, 2017 My sti does not hold it's value. 2005, 154k miles. blue books at 9700. ******* absurd. It's been for sale for over a month and I'll take what I owe on it, 11.5k. Nobody has bought it yet because the bank won't approve them for that much because the value is shit. Apparently the price ******* TANKS after 150k or something, I don't know but it's not worth what I owe. I wanted to do the swap then part out the shell and the legacy parts I don't use. I've decided none of it is worth it and I'll just rebuild the legacy engine and leave it stock. I'm done dumping money into cars. It's really not worth my time. Link to comment Share on other sites More sharing options...
xxBLOOD88SHOTxx Posted September 4, 2017 Share Posted September 4, 2017 New short block and reworked heads. That's what I did. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 4, 2017 Share Posted September 4, 2017 I'm confused, So lets get this straight. The STI runs well ? The GT wagon needs a short block ? The 1999 runs well ? The easy way out is put a ej257 short block in the wagon, and have the heads rebuilt as we've said. If you don't have the funds right now, lower the insurance on it to the minimum and park it for a few weeks. May be lower the insurance on the STI too and park it till you save money. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
bobglaub Posted September 4, 2017 Author Share Posted September 4, 2017 New short block and reworked heads. That's what I did. how much did the reworked heads cost? Link to comment Share on other sites More sharing options...
Max Capacity Posted September 5, 2017 Share Posted September 5, 2017 how much did the reworked heads cost? It depends on what they need. My heads were cheap because they didn't need any valves. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Guest Posted September 8, 2017 Share Posted September 8, 2017 My understanding was the heads on the stinare different. My legacy needs a new short block, so I figured if it has to come out anyway, may as well drop in the STI engine. Then my brain went, well, why not swap everything? It's so annoying this falsehood gets perpetuated. Like idling diesels being 'good' . 04-06 STI & 05-06 LGT block and heads are identical. Link to comment Share on other sites More sharing options...
Outblack Posted September 8, 2017 Share Posted September 8, 2017 Where'd you cop your 12 mt bro???? Link to comment Share on other sites More sharing options...
Guest Posted September 8, 2017 Share Posted September 8, 2017 Where'd you cop your 12 mt bro???? Well, don't remember needing urban dictionary to participate here Started with 5mt, then 10mt, then 11mt, now 12mt. I'll let you guess what is that Link to comment Share on other sites More sharing options...
4S-TURBO Posted September 8, 2017 Share Posted September 8, 2017 EJ255 Version 1: Used in the 2005 and 2006 Legacy, as well as the 2004 and 2005 Forester. This engine uses the AB440 shortblock, which is the same shortblock as the 2004-2006 STI EJ257. The heads on these EJ255 are the AB650s, while the US 04-06 STI is the familiar AB640/910. The cams are the same between the EJ255 Version 1 and the EJ257. The same shortblock as EJ255 except the EJ255 has a different dished piston vs the EJ257. The heads also have different components. Subaru of America designates the same part numbers for an EJ255 shortblock, and EJ257 shortblock with the exception of the pistons. Link to comment Share on other sites More sharing options...
Guest Posted September 9, 2017 Share Posted September 9, 2017 An idiot pasting wrong info to Wikipedia does not make it true. http://legacygt.com/forums/showthread.php/05-06-lgts-255-04-06-stis-257-once-and-264989.html?p=5684181#post5684181 Link to comment Share on other sites More sharing options...
4S-TURBO Posted September 9, 2017 Share Posted September 9, 2017 They're identical except where they're different. Link to comment Share on other sites More sharing options...
bobglaub Posted September 12, 2017 Author Share Posted September 12, 2017 I've done a lot of reading and reserch on the matter now. 100% pointless to swap STI parts. Brakes won't fit. Suspension wony fit. Transmission will fit, but it'll take a shit load of work and money. I also found out that my longblock is the exact same as the STI. I have a spare vf39 lying around that I may put into it when I get a FMIC. Thanks everyone for your input. I've learned a lot and still have a lot to learn. Link to comment Share on other sites More sharing options...
4S-TURBO Posted September 13, 2017 Share Posted September 13, 2017 For turbo and IC fitment, Legacy intake manifold design is different from the STI. Link to comment Share on other sites More sharing options...
bobglaub Posted September 13, 2017 Author Share Posted September 13, 2017 i'm aware of the intake manifold difference. i mean, i own both cars and i've spent hours upon hours under and above both. Apparently subaru's hate me and like me ripping into them every ******* weekend. I'm almost ready to light them both on fire. I'd get the racerx fmic that comes with the adapter for the sti turbo or the lgt turbo. That kit is badass and if i wasn't as broke as i am i'd have it already. Link to comment Share on other sites More sharing options...
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