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Old 03-16-2018, 08:50 PM   #1
JadidasKV
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Default Shortblock swap

I found a shortblock with 100k miles for $450, and if i add the heads he has with 50k hell take $750. Ill probably jus get the shortblock and swap all my stuff onto it. Since my motor has rod knock, i think this is my best bet for what i can find. I need to get my car running asap since im sharing cars until mine is done.

What would i need to buy to swap all my parts onto the newer shortblock as far as gaskets and such? I just replaced my timing belt and pulleys about 10k ago so i can swap all that over.

I need to get this back together as cheap and fast as possible. Once the swap is done and my car is up and running, i can (re)build my shortblock with rod knock, i just need a running car asap.
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Old 03-17-2018, 10:04 AM   #2
TwistedAxles101
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If I was replacing a short block, I would get the following: head gasktes, intake gaskets, thermostat o-ring, water pump gasket. I would make sure to trash your oil cooler and oil pump, they are more than likely saturated with metal flakes from your spun bearing.
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Old 03-17-2018, 07:47 PM   #3
JadidasKV
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Cool cool. Thats what i was expecting, just wanted to confirm/double check. Which head gaskets should i get? There are so many different ones
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Old 03-19-2018, 01:16 AM   #4
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By the time you do that you have spent as much money as buying a jdm ej205 long block on Ebay. Look for a low mile ej205 complete long block, they go for $900-$1000.
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Old 03-19-2018, 09:36 PM   #5
JadidasKV
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Ya but you never really know what you're getting from ebay. At least with the 100k short block for 450 and found another one with 112k for 400 they are local so i can actually look at them before buying them. Ive read a few threads where ppl got those jdm long blocks n had them crap out fairly quick. Plus i have a vf39 with all the upgrades and tune to go with it so i can jus swap everything i have over to the shortblock and not have to retune. Just want to get my car up and running asap since im sharing a car atm. Then i can rebuild my shortblock in the meantime
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Old 03-19-2018, 10:36 PM   #6
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Ok so now i may go a different direction. Talking to someone that rebuilds ej205s. He said he can do a rebuilt shortblock with new parts. acl kings rods and mains, arp head studs, for $750. I said i cant to that i still need the gasket kit and everything else, by that time id be better off getting a long block from ebay for $1000. He said hell throw in complete cosmetic gasket kit, and if i wait a couple weeks hes coming out this way so he'll do it all delivered to my door $700.

He says thats all i should need. Then said not to reuse my timing belt kit eventhough i just put it in 10k miles ago. When i replaced the timing belt kit, the one i took out had 125k and everything was still good. Can i really not reuse the kit i just put it 10k ago?
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Old 03-19-2018, 10:48 PM   #7
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Actually he said he'll throw in the timing belt kit too. Sweet. He asked when ill have the money so i got kind of sketched out so i told him ill have it in a couple weeks when he comes out, cash on delivery. He said half the through paypal the other half cash on delivery. Why does this seem like its too good to be true lol.

Then he said once he gets the paypal he'll start on it and send me pics through out. Now back to a little sketched out lol. Being through pay pal is the only thing thats keeping the sketchy level at a 7-8 and not a full 10 lol
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Old 03-20-2018, 12:15 AM   #8
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Smells bad, good luck man.
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Old 03-20-2018, 10:37 AM   #9
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I’d run away from this. Sounds like when you raise a concern he addresses it by giving you something free to keep you on the line. Just the gasket kit and timing kit will be $3-400. Throw in a block on that and this guy is losing money. No way this will turn out in your favor. Just saying!!
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Old 03-20-2018, 12:34 PM   #10
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Quote:
Originally Posted by JadidasKV View Post
Ok so now i may go a different direction. Talking to someone that rebuilds ej205s.
Ok, back to basics -

Who is this guy?
How did you find him?
What is his background on Subaru engines?

He may be all good or he may be a scammer - know one knows.
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Old 03-20-2018, 01:33 PM   #11
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5 references you can verify or walk (er, run away).
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Old 03-20-2018, 04:43 PM   #12
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If* you can pony up a couple more dollars try and get a new stock short block.
You satisfy two needs;
- no waiting; quick turnaround.
- reliability
With time , build your rod knock'd short block.
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Old 03-20-2018, 04:44 PM   #13
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Yea the more i talk to him the more it seems too good to be true. He says he does this for a living. Says he has like 20 blocks, tons of spare parts, he just wants to get away from subarus and onto something else because hes built so many. I put a most on one of the subaru facebook groups and he commented under the post saying he has one. Then i messaged him for awhile last night.

Exactly my thoughts. Delivering a rebuilt block with new parts, with a cometic gasket kit and timing belt kit for free, thats not even worth it for someone trying to make money off it. I dont see how any money can be made. Especially hes not doing the machine work. Hed be dropping it off at the machine shop then hed building it when the machine work is done. Sounds way too good to be true
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Old 03-20-2018, 05:07 PM   #14
JadidasKV
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Quote:
Originally Posted by danger1138 View Post
If* you can pony up a couple more dollars try and get a new stock short block.
You satisfy two needs;
- no waiting; quick turnaround.
- reliability
With time , build your rod knock'd short block.
Well thats why i was thinking about this one, but seems too good to be true.
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Old 03-21-2018, 06:58 AM   #15
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From personal experience: I replaced the shortblock in my car due to a misfire in #4. In hindsight, I should have just pulled the motor, redid the valves and been done. Instead I went with a rebuilt shortblock that I thought was well built. It endt up spinning a thrust bearing of all things and I had to do it all over again. Within 15k.

There is more to the story but the short of it: unless you are going to with a known builder, buy an OEM short block and be done. In the end I had to do and buy everything twice (gaskets, belts, sundries, TIME) versus paying a little more up front and being done once.

Your call.
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Old 03-21-2018, 02:52 PM   #16
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Default Shortblock swap

A new short block is always best, Iíve had good luck with imported junk yard motors from Japan. Iíve done 3 different Subaru WRX, 2 of them with ej207 and my current daily driver with an ej205. Itís a matter of been selective and not just buy the cheapest motor one can find.
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Old 03-23-2018, 10:46 AM   #17
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I went with a new, OEM shortblock when my stock engine spun a rod bearing. 50k miles later and it's still going strong.
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Old 03-23-2018, 03:23 PM   #18
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If you are trying to keep costs down, you have the option of buying a N/A EJ22 engine and using it as your shortblock. If you can find one of decent mileage. The added displacement will require a tune, though. There are several posts/threads here discussing this option. Do a little digging if interested.


I had a machine shop prep the heads from a blown EJ20, and my summer project is to build a spare engine for my bugeye using those and the EJ22 shortblock from an older Outback Sport I parted out.
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Old 03-23-2018, 04:25 PM   #19
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Quote:
Originally Posted by JT99 View Post
If you are trying to keep costs down, you have the option of buying a N/A EJ22 engine and using it as your shortblock. If you can find one of decent mileage. The added displacement will require a tune, though. There are several posts/threads here discussing this option. Do a little digging if interested.


I had a machine shop prep the heads from a blown EJ20, and my summer project is to build a spare engine for my bugeye using those and the EJ22 shortblock from an older Outback Sport I parted out.
Don't do this /\. Just, no...
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Old 03-24-2018, 12:19 PM   #20
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Originally Posted by car_freak85 View Post
Don't do this /\. Just, no...

Because?
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Old 03-27-2018, 01:39 PM   #21
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Those internals aren't set up for a turbocharged platform. I doubt the OP want's to go through the hassle of doing two complete engine R&Rs, so why not just go with the appropriate equipment the first time around instead of skimping on cost up front, then doubling the labor cost?
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Old 06-12-2020, 04:35 PM   #22
JadidasKV
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Bringing back my old thread because im going to be pulling my motor soon. I have another car so time isnt a big deal.

So i bought a used short block that has 95-97k. I was going to buy the gaskets, tear my motor apart and swap everything over to the used shortblock. But now im thinking i may just want to buy a complete motor and just put my upgraded parts on it and drop it in. Problem being all i can find is jdm motors. As said earlier in the thread, with the cobb v2 and upgrades i have, i dont want to have to retune the engine. So now idk what idk what to do lol

I read a thread awhile ago but i just searched for it and couldnt find it, and cant remember all the details. It was about the differences between jdm and usdm, avcs and non avcs, what drops in, and which motors need what to swap. Theres no way to use a jdm engine wo having to retune right?

Idk if i should get the gaskets and upgrade the oiling system on the shortblock i bought, or get a complete motor. I have $1,500-2,000. If i wait a little longer i could prob spend 2,500. What would be the best option/what would you guys do with this budget?
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Old 06-12-2020, 05:00 PM   #23
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Quote:
Originally Posted by JadidasKV View Post
Bringing back my old thread because im going to be pulling my motor soon. I have another car so time isnt a big deal.

So i bought a used short block that has 95-97k. I was going to buy the gaskets, tear my motor apart and swap everything over to the used shortblock. But now im thinking i may just want to buy a complete motor and just put my upgraded parts on it and drop it in. Problem being all i can find is jdm motors. As said earlier in the thread, with the cobb v2 and upgrades i have, i dont want to have to retune the engine. So now idk what idk what to do lol

I read a thread awhile ago but i just searched for it and couldnt find it, and cant remember all the details. It was about the differences between jdm and usdm, avcs and non avcs, what drops in, and which motors need what to swap. Theres no way to use a jdm engine wo having to retune right?

Idk if i should get the gaskets and upgrade the oiling system on the shortblock i bought, or get a complete motor. I have $1,500-2,000. If i wait a little longer i could prob spend 2,500. What would be the best option/what would you guys do with this budget?


Get a JDM 205 and just swap all the head stuff from your engine into that one so you're not using the AVCS. You can also plug the oiling holes in the cams and remove/block off the AVCS solenoids. Both those option will allow you use the AP with your USDM ECU. Then just get a retune for the difference in compression.
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Old 06-12-2020, 09:58 PM   #24
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Do you have an accessport? If so, buy a used jdm long block(non AVCS) swap over the cam gears, turbo etc... and retune. Or do the whole shabang, get the jdm ecu, wiring etc, and protune.(207 If i had to do it again) or 205w AVCS

Iíd recommend Eric minehart from torqued performance(etune)Heís tuned mine, and is going to retune it for the vf48 I just installed. Your looking at around 1k(jdm ej205 non AVCS) Swap over your timing kit and be done with it. Or a protune if you have a tuner with an awd dyno in your area.(I donít, 300 miles away)

But thatís what Iíd do. In your scenario.

No need to rebuild, or try and chance a random guy with a ďGreat dealĒ. Many of the motors you can buy, are compression tested. Just do your research and find a seller that is reputable.

Good luck and hope to hear good news.
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Old 06-13-2020, 12:24 PM   #25
JadidasKV
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Ya i have the cobb v2 accessport.

Whats the point in getting a jdm motor and swapping over my heads if i already have a shortblock? With the shortblock i have i wouldnt have to retune, with the jdm i would because of the compression. I don't think there's an awd dyno around here. Even jus having the accessport retuned would be avoided using the shortblock i have. Id be spending a lot more money and doing a lot more work getting a jdm motor. Tearing down two motors to build one. Or plug oil holes, plug avcs, retune. Wouldnt i also have to replace cam sensor and solenoids? Or swap intake cams, sensors, and solenoids? At the point shouldnt i just use my heads?

With a non avcs long block it cuts down tearing down two motors, and only swapping cam gears, turbo and my other upgrades id obvi be swapping either way, but then still have to retune. i

Using the shortblock i have just swapping parts from one motor to the other. No retune. Id be saving money, avoiding the tune, and i could upgrade the oiling system. The other ways id be spending more money not upgrading the oiling system, and still have to retune. If i do go with a jdm this would prob be the way i go. Then again i just seen a company selling jdm motors that said if i add the jdm ecu and wiring harness its only $150 more.

If i went 207 w my turbo n updrades id be getting more power, spending a lot more money, retune, stronger block and internals, but then would it be too much power for my trans? I think this would be out of my budget, even if i could keep my trans.

Im not saying these are bad options. Im just trying to figure out the advantages and if its worth it over using the shortblock i already have.

Last edited by JadidasKV; 06-13-2020 at 03:31 PM.
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