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11-27-2020, 12:53 PM
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#21 |
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Member
Join Date: Oct 2011
Location: Fort Worth, Texas
Posts: 78
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Re: Offenhauser 400 Heads Value
I recently had a stock head re-domed. It's hard to fine a shop that has the tooling and the knowledge to do it today.
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11-27-2020, 12:57 PM
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#22 |
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Member
Join Date: Jun 2010
Location: Utica, KY
Posts: 81
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Re: Offenhauser 400 Heads Value
Thanks Tubman, I was hoping you would respond. I will now make sure to chase all threaded holes and verify they pass. Also will measure chambers and level with a straight edge as advised.
Thanks Bob |
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11-27-2020, 01:02 PM
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#23 |
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Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 11,637
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Re: Offenhauser 400 Heads Value
If possible, use an actual thread chaser, not a tap.
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11-27-2020, 01:51 PM
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#24 |
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Member
Join Date: Jun 2010
Location: Utica, KY
Posts: 81
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Re: Offenhauser 400 Heads Value
I understand about the tread chaser, I have overhauled aluminum marine engines. Aluminum treads can be a challenge. I have never worked on these type of heads and am very concerned about the alloy.
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11-27-2020, 08:20 PM
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#25 |
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Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,985
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Re: Offenhauser 400 Heads Value
Re-doming and Milling for .045/,050 piston to head clearance and your good to go. Also I heard that painting them with Latex paint will prevent erosion, can't hurt, worth a try.
Gramps |
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