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02-12-2020, 08:40 AM | #1 |
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Location: Florham Park, NJ
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High compression head
Are Tod's new iron 7:1 Winfield heads available anywhere or does anyone know when they will be?
Thanks
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1965 Lotus Elan S2 1930 Model A Sport Coupe |
02-12-2020, 12:08 PM | #2 |
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Re: High compression head
Inquiring minds want to know.
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02-12-2020, 04:41 PM | #3 |
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Re: High compression head
Interested as well
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02-12-2020, 07:19 PM | #4 |
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Location: Salem, Ohio
Posts: 1,058
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Re: High compression head
I will be casting some as soon as I run B heads. I have at least a dozen to cast. They are more like 6:1. The iron Thomas are 7:1.
Tod |
02-15-2020, 01:25 PM | #5 |
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Re: High compression head
Tod:
Where could I get an IRON Thomas head? Thanks Dick
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1965 Lotus Elan S2 1930 Model A Sport Coupe |
02-15-2020, 03:54 PM | #6 |
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Location: Salem, Ohio
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Re: High compression head
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02-15-2020, 03:55 PM | #7 |
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Re: High compression head
Winfield casting will begin Monday.
Tod |
02-16-2020, 02:39 PM | #8 |
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Location: Loomis, CA
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Re: High compression head
Looking for a cast iron 7:1 as well.
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02-17-2020, 07:04 AM | #9 |
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Location: Cleveland, Ohio
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Re: High compression head
Who, what, where do I order a cast iron Thomas head? Cost?
Thanks, Ken |
02-17-2020, 04:29 PM | #10 |
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Location: Salem, Ohio
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Re: High compression head
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02-18-2020, 08:17 AM | #11 |
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Re: High compression head
Picked up some intakes last night when I dropped off the mold sand for the next aluminum 5 main Model A engine block. We are planning to pour the aluminum block Saturday 2/22. This week should also see iron B heads, Winfields, and a sample 3 main iron block poured as well.
Tod |
02-18-2020, 10:37 AM | #12 |
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Re: High compression head
I would also eventually like an iron thomas
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02-19-2020, 02:39 AM | #13 |
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Re: High compression head
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02-19-2020, 06:35 AM | #14 |
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Re: High compression head
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02-19-2020, 09:21 AM | #15 |
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Re: High compression head
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02-19-2020, 11:43 AM | #16 |
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Location: Southern Alberta
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Re: High compression head
id jump on the bandwagon except I just spent a whole bunch on this B project last week. it will have to wait for me
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02-19-2020, 01:06 PM | #17 |
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Location: Mebane NC
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Re: High compression head
For those spectating, here is a great post I found that tests multiple combinations of HC heads, intake modifications, and plugs. Tests include a Thomas 7:1.
http://www.rarecarrelics.com/tests-t...ord-engine.php Bottom line seems to be that HC heads produce significantly improved performance by themselves at low RPM, up to about 1500-2000. That makes them a good investment for better performance in stop-and-go traffic. Once you get past that, other limiting factors become dominant, most prominently the intake and exhaust constraints. |
02-19-2020, 04:10 PM | #18 |
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Join Date: May 2010
Location: midlothian illinois
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Re: High compression head
Hi Tod. Do you have any picture that can be posted of both the Thomas and Winfield exterior configurations? I am curious about the looks of each one. Thanks, Steve
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02-19-2020, 09:03 PM | #19 | |
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Re: High compression head
Quote:
Thomas head. |
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02-19-2020, 09:14 PM | #20 | |
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Location: Salem, Ohio
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Re: High compression head
Quote:
Winfield original chamber. I also make this with a Weiand crow foot chamber, and the Winfield crow foot. Iron or aluminum on this and the Thomas. Aluminum Thomas is only available from Snyder, unless there is a flaw, in which case I can sell discounted as a blem. Tod |
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