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Old 07-20-2019, 12:32 AM   #1
morgankwright26
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Default ej207 build with ej205 heads

Bought a v7 ej207 short block
Have one ej205 that suffered rod bearing problems

Should i be worried about shavings in the old 205 engine heads? I dont want to do avcs swap and sensor and all that as ive looked into it and it seems to be much too troubling.
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Old 07-21-2019, 12:39 PM   #2
subaru_gc8
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you know shavings can take out your bearings right? I mean if it were me, I would get them as clean as possible and have everything taken apart to eliminate as much shavings as I could cause I wouldn't want to do this again..
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Old 07-21-2019, 03:39 PM   #3
morgankwright26
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Yes that is why im asking the question, how hard is it to get the bearing shavings out of the channels in the heads? I have an old engine (150k mi) that i pulled out due to rod knock, and the engine sat since 2014 while i installed my second motor. Im planning on getting the heads rebuilt, if i can be reasonably sure that they can get the shavings out.

My second set of heads are on my second motor (bored 2.2L stroker) that had head gasket failure so im concerned it will be warped and also is in bad shape since ive let it sit for 2 years. Those messed up heads have a set of hollow sti cams that i want to take out and put in the new ej207 build.
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Old 07-21-2019, 03:55 PM   #4
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Quote:
Originally Posted by morgankwright26 View Post
Yes that is why im asking the question, how hard is it to get the bearing shavings out of the channels in the heads? I have an old engine (150k mi) that i pulled out due to rod knock, and the engine sat since 2014 while i installed my second motor. Im planning on getting the heads rebuilt, if i can be reasonably sure that they can get the shavings out.

My second set of heads are on my second motor (bored 2.2L stroker) that had head gasket failure so im concerned it will be warped and also is in bad shape since ive let it sit for 2 years. Those messed up heads have a set of hollow sti cams that i want to take out and put in the new ej207 build.
I honestly dont know how to answer our question, I know when i got my engine built I had outfront clean up and rebuild my heads. I didnt want any little shards of metal messing up my build. I mean it all depends on your level of a sound mind. you know what I mean?
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Old 07-21-2019, 06:56 PM   #5
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Parts washer, strip the heads bare of valves and anything that bolts to them or is made of plastic or rubber. Any machine shop worth anything has a hot tank parts washer. Once washed use compressed air to blow out the passages.

You could also DIY with a 5gallon Bucket of chemical parts wash. (carb cleaner).
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Old 07-21-2019, 07:32 PM   #6
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Parts washer, strip the heads bare of valves and anything that bolts to them or is made of plastic or rubber. Any machine shop worth anything has a hot tank parts washer. Once washed use compressed air to blow out the passages.

You could also DIY with a 5gallon Bucket of chemical parts wash. (carb cleaner).
+1
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Old 07-25-2019, 12:00 PM   #7
morgankwright26
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I guess that answered my question, it was whether or not those pressure washers at the machine shop can clear out these heads after something as extreme as a rod bearing sending crap down the channels.
Wouldnt want to rebuild and have residual **** ruin another build...
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Old 07-30-2019, 09:05 PM   #8
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While on the topic of heads and avcs and ej205: Im building a JDM ej205 (2002) with AVCS heads (single avcs) and my passenger side intake cam gear is busted. Where can i get a new cam gear and would one from a EJ25X work or no?
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Old 07-31-2019, 11:18 AM   #9
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Originally Posted by sederholma View Post
While on the topic of heads and avcs and ej205: Im building a JDM ej205 (2002) with AVCS heads (single avcs) and my passenger side intake cam gear is busted. Where can i get a new cam gear and would one from a EJ25X work or no?
they're all the same
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Old 07-31-2019, 11:45 AM   #10
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they're all the same
Thank you I love you!
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Old 08-02-2019, 10:23 PM   #11
morgankwright26
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How are you getting around the cam positioning sensor location? I know the 205 is in the front, isnt the 207 sensor round back?
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Old 08-02-2019, 11:57 PM   #12
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Quote:
Originally Posted by morgankwright26 View Post
How are you getting around the cam positioning sensor location? I know the 205 is in the front, isnt the 207 sensor round back?
the 207 has 3 cam sensors, 2 to run the avcs and 1 in the front running off the timing belt
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Old 08-07-2019, 07:40 PM   #13
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Interested to follow this build. I have a 207 short block I've been sitting on. I thought due to combustion chamber design differences that setup lowers your compression? ie 205 heads 207 sb
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Old 08-13-2019, 03:37 AM   #14
morgankwright26
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That was about to be my next question, if anyone had a quick link to the gasket as I know the combustion chamber size/CR is slightly different and it needs to be offset.
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