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04-14-2020, 11:40 AM | #21 |
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Join Date: Mar 2014
Location: Salem, Ohio
Posts: 1,058
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Re: My first iron OHV casting!
Picked up some more cylinder head bullion today. 12 Winfield iron and the first OHV iron sample. They look very nice. Can't wait to machine the OHV. Winfield machining has already run parts.
Tod |
04-19-2020, 01:14 PM | #22 |
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Join Date: Mar 2014
Location: Salem, Ohio
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Re: My first iron OHV casting!
The rocker cover pattern for these new OHV heads. Finish pass CNC cut yesterday. Next is the inside.
Tod |
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05-01-2020, 06:26 AM | #23 |
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Location: northern Maryland
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Re: My first iron OHV casting!
Tod, Gordon Eliot White's Leo Goossen Archives has copies of blue prints for both of the push rod heads, each penned by Goossen when at Miller and then at Schofield. I have those in my files. The Schofield print would permit you to verify exact water passageways/jackets, etc.
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05-02-2020, 07:22 AM | #24 |
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Re: My first iron OHV casting!
Wow the OHV casting looks great very interested to follow your progress
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07-31-2020, 08:19 PM | #25 |
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Location: near Hershey, PA
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Re: My first iron OHV casting!
Any updates on the OHV, Tod?
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07-31-2020, 08:35 PM | #26 |
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Location: Melbourne, Australia
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Re: My first iron OHV casting!
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I am mildly surprised that the combustion chamber is not hemispherical. I'm sure Tod will have considered it but I'd like to hear why he decided against doing it.
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07-31-2020, 08:41 PM | #27 |
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Re: My first iron OHV casting!
any updates on the blocks?
Lawrie |
08-01-2020, 08:24 AM | #28 | |
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Re: My first iron OHV casting!
Quote:
$US is dropping: |
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08-01-2020, 10:43 AM | #29 |
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Location: Temecula, CA
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Re: My first iron OHV casting!
The original Miller/Cragar's required A LOT of spark advance to develope good power, Dodgde's suggestion is very good. Also, the originals used 6 cyl. Buick rocker arms, 1.25:1 ratio. I would recommend 1.5's for several reasons, like, most performance cams are ground for 1.5:1 rockers, and valve lift is very important.
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