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Old 10-28-2012, 12:24 PM   #1
cohen_fetters
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Default Stupid question on a shortblock swap

tried doing some research on swapping in a 2011 sti short block into an 06 sti but couldnt find anything. is this a straight drop in swap?
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Old 10-28-2012, 04:02 PM   #2
drewvdw
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Should be, don't expect to gain anything though.
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Old 10-28-2012, 04:04 PM   #3
the suicidal eggroll
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I'm pretty sure nothing has changed in the short block other than the crank. Why do you want to do this?
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Old 10-28-2012, 05:52 PM   #4
Layvon
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The only short block you can buy is a 704.
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Old 10-28-2012, 06:51 PM   #5
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Quote:
Originally Posted by the suicidal eggroll View Post
I'm pretty sure nothing has changed in the short block other than the crank. Why do you want to do this?
Most people do this because they spin a bearing or maybe they want the nitride crank and it's a lot quicker to just swap short blocks. It's not rocket science.
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Old 10-28-2012, 06:52 PM   #6
cohen_fetters
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yea my block is shot that is the only reason i am asking. not looking for any gains.
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Old 10-28-2012, 06:54 PM   #7
cohen_fetters
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Quote:
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The only short block you can buy is a 704.
uhh sorry for being a noob. can you explain?
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Old 10-28-2012, 07:05 PM   #8
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Quote:
Originally Posted by cohen_fetters View Post
uhh sorry for being a noob. can you explain?
There are different castings. I believe the original 2.5 short block was a 702 casting. Over the years with changes made to the blocks they change the casting numbers when there's a difference. So if you were to order a short block from Subaru for a 2004 sti you'd get the 704 casting which is the newest "model" of that short block.
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Old 10-29-2012, 12:13 AM   #9
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Casting numbers are really only for dating purposes, like batch numbers in a way. OP dont worry about it, swap it in and you will be fine.
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Old 10-29-2012, 08:43 AM   #10
jaxscuby
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701 first in 04 sti

yes straight swap
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Old 10-29-2012, 10:00 AM   #11
cohen_fetters
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Thanks for the help.
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Old 10-29-2012, 08:42 PM   #12
iSTI
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yeah its just a drop in and your done just be sure to bolt everything to its tq specs..
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Old 10-29-2012, 09:32 PM   #13
HinshawWRX
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Did this almost a year ago without a problem.
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Old 10-29-2012, 10:29 PM   #14
Layvon
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My 2004 is also running a 704.
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