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OST-105: 2nd gen, standard valve bigport head

Posted: Mon May 06, 2024 9:51 am
by oldeskewltoy
For sale: OST-105, a 2nd gen standard valve bigport head. Fully ported, and rebuilt using new viton rubber valve seals, and BC valves springs (good for cams with upto 10mm of lift)

$1300 + shipping - NO CORE REQUIRED

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nicely polished cam journals, and deburred casting

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middle of port work, bowl 5(left) now nicely shaped, and bowl 4(right) not yet begun
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Port work complete, next step multi angle valve job....

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upclose on the multi angle valve job....

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Assembly using BC springs

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message me, or better yet email me: oldeskewltoy@yahoo.com Title it: "OST-105"

Re: OST-105: 2nd gen, standard valve bigport head

Posted: Mon Jun 10, 2024 11:33 am
by allencr
Thanks for the pics.
WOW, that spring comp., you've spent a LOTTA time with it even if you do the removal with a hammer & socket!
Weld a nut & use your drill??
/
Also, a nicer surface might increase its sellability.

Re: OST-105: 2nd gen, standard valve bigport head

Posted: Sun Jun 16, 2024 8:15 pm
by oldeskewltoy
allencr wrote:Thanks for the pics.
WOW, that spring comp., you've spent a LOTTA time with it even if you do the removal with a hammer & socket!
Weld a nut & use your drill??
/
Also, a nicer surface might increase its sellability.


The surface has been machined... .004". I'll get a photo tomorrow..... ;)

Re: OST-105: 2nd gen, standard valve bigport head

Posted: Mon Jun 17, 2024 9:28 am
by oldeskewltoy
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and packed in a 4 mil bag keeping it clean