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Old 09-10-2020, 09:18 PM   #1
DBSHELTON
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Default Hi Compression Heads

What High Compression heads are available these days?
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Old 09-10-2020, 09:24 PM   #2
Bob C
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Default Re: Hi Compression Heads

Check this link, Tod's got a lot of different heads. https://www.fordbarn.com/forum/showthread.php?t=284759
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Old 09-11-2020, 06:54 AM   #3
Tod
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Default Re: Hi Compression Heads

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Originally Posted by DBSHELTON View Post
What High Compression heads are available these days?

What are you after? Snyder sells 2 stock looking heads, and I sell Winfield heads, B heads, Thomas heads (iron), and I am soon to be in the testing phase of my new stock looking crow's foot chambered head. The Winfield heads can be made with original 6:1 chambers, or 7:1 crow's foot chambers. The Thomas aluminum I sometimes have blems that I can sell. They are 7:1.


All of my heads are machined in the same machine and fixture that I machine Snyder's heads in.


PM me and we can talk.



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Old 09-11-2020, 09:52 AM   #4
old31
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Default Re: Hi Compression Heads

Tod, i currently have a Snyder 6.1 head and I am very happy with it.

What would the HP gain be for me to go to a 7.1?

Would I still use the lowest octane?

What is the cost?
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Old 09-11-2020, 10:42 AM   #5
Tod
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Default Re: Hi Compression Heads

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Originally Posted by old31 View Post
Tod, i currently have a Snyder 6.1 head and I am very happy with it.

What would the HP gain be for me to go to a 7.1?

Would I still use the lowest octane?

What is the cost?

1)The gain will depend on current H.P. but you would be safe to assume around 4-5%.
2) Cost depends on what you are after.


Tod
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Old 09-11-2020, 11:38 AM   #6
DBSHELTON
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Default Re: Hi Compression Heads

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Thanks. I will probably go with Snyder's 6:1 when they are back in stock.
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Old 09-11-2020, 01:52 PM   #7
Jack Shaft
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Default Re: Hi Compression Heads

Snyders 6 to 1? When a new winfield red head is being made?truly one area where a few bucks more makes a big difference..no,you won't bang out your babbit or need high octane fuel..a B cam and a mechanical advance distributor? Single downdraft stromberg or holley?hell yes,maximize effciency and power output..a cooler running more powerful engine..
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Old 09-11-2020, 02:17 PM   #8
DBSHELTON
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Default Re: Hi Compression Heads

None are available now so I have time to think......
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Old 09-12-2020, 06:35 PM   #9
old31
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Default Re: Hi Compression Heads

Quote:
Originally Posted by Tod View Post
1)The gain will depend on current H.P. but you would be safe to assume around 4-5%.
2) Cost depends on what you are after.


Tod
I have about 65HP now. I am after more HP from just a head swap.
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Old 09-12-2020, 06:57 PM   #10
Jack Shaft
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Default Re: Hi Compression Heads

Engine performance is a balance,fuel air compression and exhaust,they all work together to yield best results.Feed enough fuel with proper cam,mechanical advance timing and exhaust,the 6 to 1 head will out perform a 7 to 1 head with an A cam, stock carb and manual advance timing..
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Old 09-13-2020, 02:56 PM   #11
Jim Brierley
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Default Re: Hi Compression Heads

I don't agree that a 6:1 will out perform a 7:1, makes no sense. More compression and a bigger carb are the quickest, easiest and least expensive ways to increased power.
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Old 09-13-2020, 03:32 PM   #12
Jack Shaft
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Default Re: Hi Compression Heads

My point is a tuned 6 to 1 with a b cam,downdraft carb and mechanical advance distributor will beat a stock A with a 7 to 1 head on it...Apples to apples I agree with you,but the real gain is in the sum of the parts
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Old 09-13-2020, 03:42 PM   #13
ModelAAfreddie
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Default Re: Hi Compression Heads

What’s a b cam? I’m a newbie. And very little mechanical knowledge.
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Old 09-13-2020, 05:56 PM   #14
Jack Shaft
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Default Re: Hi Compression Heads

32-34 ford model b engine camshaft.Its a superior camshaft for performance next to a stock A cam. Mr Brierley is a camshaft grinder,author and speed legend, Im a ham and egger...
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Old 09-16-2020, 06:26 PM   #15
DBSHELTON
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Default Re: Hi Compression Heads

Snyder's called me today and wanted to know if I still wanted a 6:1 head. I said sure, send it to me so I should get it Saturday or Monday. Cool that they didn't forget I was on the waiting list. Now, which car do I put it on and which one gets the Lion Speed Head? I guess the Huckster will get the Snyder 6:1 head since I just installed a Borg-Warner overdrive in it. It could use more horsepower to pull that gear.
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Old 09-24-2020, 08:33 PM   #16
DBSHELTON
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Default Re: Hi Compression Heads

Installed my Snyder 6:1 head. My engine is .100 overbore so the compression ratio will be a little higher than 6:1. Does anyone have an idea how much higher? Where should I keep the timing? About 24-25 degrees?
I had a hell of a time getting this thing started. Finally ended up removing the B Distributor and carb and installing the A Distributor and carb. Got it all running and starting. Now I will re torque the heads tomorrow evening and run it some more.

Last edited by DBSHELTON; 09-24-2020 at 08:46 PM.
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Old 09-25-2020, 03:40 AM   #17
old31
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Default Re: Hi Compression Heads

On my 6.1 and bored engine I time as usual and put the advance lever at about 3:30 and its happy.
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Old 09-25-2020, 05:23 AM   #18
DBSHELTON
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Default Re: Hi Compression Heads

I think I will try 28 degrees max after I retorque the head a couple of times.
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Old 09-25-2020, 07:36 AM   #19
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Default Re: Hi Compression Heads

I have a Snyder's 5:1 Head and have been very pleased with it.
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