OST-035: Silver Blaze
10-21-2015, 08:41 PM
Post: #12
RE: OST-035: Silver Blaze
Back from the machine shop... surface was machined .002", isn't that pretty, and ready to accept a metal gasket.

[Image: AEU86 AE86 - RE: OST-035: Silver Blaze]


Now carrying the exhaust 3 angle(bowl closest), and as you can see the intake 3 angle is still good, so I used a tiny bit of lapping paste to get the intake seats and valves mated

[Image: AEU86 AE86 - RE: OST-035: Silver Blaze]

Clover lapping paste on left, Permetex/NAPA valve grinding compound on right... think of the Clover as a polish

[Image: AEU86 AE86 - RE: OST-035: Silver Blaze]


that polish helped reveal..... a tiny bit more performance may be available with a back cut on the intakes. That is for another day/head.

[Image: AEU86 AE86 - RE: OST-035: Silver Blaze]

the red arrow is pointing to the top of the seat-valve contact point, so the dotted green lines represents a bit of room for a simple, clean back cut.



Finally, my client asked me if I could do something to better accommodate his use of ARP studs....

[Image: AEU86 AE86 - RE: OST-035: Silver Blaze]

Look back at the first pic in this post to see the bolt hole before.....


more to come..... Big Grin

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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Messages In This Thread
OST-035: Silver Blaze - oldeskewltoy - 09-29-2015, 02:00 AM
RE: OST-035: Silver Blaze - oldeskewltoy - 09-29-2015, 11:54 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 09-30-2015, 08:58 PM
RE: OST-035: Silver Blaze - Bean - 10-01-2015, 06:58 AM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-07-2015, 08:28 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-07-2015, 09:39 PM
RE: OST-035: Silver Blaze - Bean - 10-07-2015, 09:53 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-07-2015, 10:12 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-09-2015, 05:38 PM
RE: OST-035: Silver Blaze - banpei - 10-10-2015, 09:34 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-14-2015, 10:22 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-21-2015 08:41 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-21-2015, 10:02 PM
RE: OST-035: Silver Blaze - oldeskewltoy - 10-24-2015, 02:11 AM
RE: OST-035: Silver Blaze - Bean - 10-24-2015, 09:08 AM

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