OST-058: "Q"
09-28-2019, 05:14 PM
Post: #1
OST-058: "Q"
[Image: AEU86 AE86 - OST-058: "Q"]



more to come...... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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09-28-2019, 08:41 PM
Post: #2
OST-058: "Q"
[Image: AEU86 AE86 - OST-058: "Q"]
Dumb question

1982 - TA60 Carina 4dr sedan - fun cruiser
1983 - AE86 Sprinter Trueno - import project
2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

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10-01-2019, 12:12 AM
Post: #3
OST-058: "Q"
(09-28-2019 08:41 PM)banpei Wrote:  [Image: AEU86 AE86 - OST-058: "Q"]
Dumb question

Not a whole lot going through my mind....... Evil but of course 4AG head porting Angel


Recently I've acquired 5 20V 4AG heads. Two Silvertop, and three Blacktop

[Image: AEU86 AE86 - OST-058: "Q"]


One of the Blacktop heads went to a client in Indiana, this head is #2 from that lot.... and it is available.... Huh

disassembled, ready to get cleaned

[Image: AEU86 AE86 - OST-058: "Q"]



more to come.... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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10-01-2019, 08:26 PM
Post: #4
OST-058: "Q"
the head came back pretty clean...


This was the first 20V head I spent any time on deburring the casting flash

[Image: AEU86 AE86 - OST-058: "Q"]

Most of the casting flash was around the spark plug tube supports, and in the end areas. Some of the area are purposefully cast with a ledge, those areas stand out around the exhaust side bucket cylinders



More to come...... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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10-03-2019, 03:07 AM (This post was last modified: 10-03-2019 03:07 AM by oldeskewltoy.)
Post: #5
OST-058: "Q"
and so it begins.... biggest thing on a Blacktop head is core shift... you can kind of see it in top photo's short radius as it isn't centered


[Image: AEU86 AE86 - OST-058: "Q"]


Chamber #2 on top, chamber #1 on the bottom....


You can also see where I've done blending around the valve seats



more to come...... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user
10-03-2019, 05:27 PM
Post: #6
OST-058: "Q"
working the bowls to correct the core shift, and to create "gentle" short radii.....

[Image: AEU86 AE86 - OST-058: "Q"]


more to come...... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user
10-04-2019, 01:12 AM
Post: #7
OST-058: "Q"
2 down... 2 to go....

[Image: AEU86 AE86 - OST-058: "Q"]


more to come.... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user
10-14-2019, 06:21 PM
Post: #8
OST-058: "Q"
with the port work finished, its off to the machine shop to get its valve job, and re-surfacing

[Image: AEU86 AE86 - OST-058: "Q"]


more to come..... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user
10-22-2019, 06:47 PM
Post: #9
OST-058: "Q"
back from its valve job(ain't those back cuts purdy..... ), and re-surface... ready for re-assembly.

[Image: AEU86 AE86 - OST-058: "Q"]


more to come.... Hurray!


PS... this head still needs a new owner.......

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user


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