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Old 10-31-2005, 21:42   #1 (permalink)
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Windsor 289 with 4v heads????

Hi All.

I have just purchased a car which had a Windsor 289 in it and was told be the seller that it also had 4v heads.

Speaking to several people I got mix info re the Windsor 289. Most people
said that the Windsor 289 4v only means that it has a 4bbrl inlet manifold.

Is this correct????
Also can someone please tell me what the engine number means?
C6AE-6015-C

Any help would be much appreciated.
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Old 11-01-2005, 04:06   #2 (permalink)
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Re: Windsor 289 with 4v heads????

As you have said 4V in Windsor talk refers to the 4 barrel carb and inlet manifold. As for the number, here's a start:- C = 60's, 6 = 6 so C6 = 1966. "A" indicates the car line the part was originally designed for = "Full size Ford. "E" is for engine. So we have an engine part cast in 1966 and descendant from the full size ford design.
6015 is the basic part number, 6010 = block and 6049 = head. 6015 =?, maybe inlet manifold, is that where you found it? "C" = 2nd change from original design.
Hope this helps a little.
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Old 11-01-2005, 12:18   #3 (permalink)
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Re: Windsor 289 with 4v heads????

Thk's Nassi.

The number came of the engine / block near the starter motor.

Re the heads, I have had the rocker covers of and there is a 4 casted
inside them. Do you know what this means?
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Old 11-01-2005, 14:34   #4 (permalink)
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Re: Windsor 289 with 4v heads????

The 65-67 289 had both 4V and 2V. The V stands for venturi i.e. the number of barrels in the carby. You can expect a pressure drop of about 3"hg on the 2V, while the 4V is about 1.5"hg.

The 2V for this period had a standard compression ratio of 9.3 while the 4V was 10. Both heads had 54.5cc combustion chambers. The later 1968 heads had 63cc combustion chambers to make them compatible with the 302 crossover.

So the 2V and 4V heads for the period are the same, except some may not have the thermactor setup.
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Old 11-01-2005, 16:13   #5 (permalink)
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Re: Windsor 289 with 4v heads????

They do have 4V cast into them, but besides the smaller chamber, they are exactly the same.
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Old 11-02-2005, 04:23   #6 (permalink)
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Re: Windsor 289 with 4v heads????

Sorry Cyprus73, my resource may have a typo, as you say 6015 is the Block basic casting. This is confirmed onthe next page, not to mention on my own engines, some days it dosnt pay to get up.
As for the 4 or 4V cast into the head, this was true for 302 heads, they have the smaller combustion chamber for higher compression as Racer has said. So anything is possible. You may have later heads or your motor may have been assembled during a change over period.
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Old 11-02-2005, 14:16   #7 (permalink)
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Re: Windsor 289 with 4v heads????

Well I'll just have to disagree and say that from what I've seen the heads are the same on the 2V and the 4V. The 2V engine is easily identified by it's dished pistons, while the 4V has flat tops.

1965 series pistons:

2V 289 P/N C3AZ-6108-A standard with oversizes ,0.020" H,0.030" J, 0.040"K

4V 289 P/N C5OZ-6108- A standard with oversizes 0.003"G,0.020" B,0.030"C, 0.040"D



1966 series pistons:

2V 289 P/N C3AZ-6108- AA standard with oversizes 0.003"AB,0.020" AC,0.030" AD, 0.040"AE

4V 289 P/N C5OZ-6108- F standard with oversizes 0.003"G,0.020" H,0.030"J, 0.040"K
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Old 11-02-2005, 17:51   #8 (permalink)
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Re: Windsor 289 with 4v heads????

I thought the 4V heads were off 302's - but i could be wrong. 54cc is definately 289, but i don't recall the 4V chamber size. Either way, unlike the Cleveland, they are nothing special.
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Old 11-02-2005, 18:44   #9 (permalink)
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Re: Windsor 289 with 4v heads????

The 289 blocks got 302 heads and 302 crank in Australia, before the US saw the 302. So chances are a 289 bought here has a 302 63cc head
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Old 11-02-2005, 21:37   #10 (permalink)
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Re: Windsor 289 with 4v heads????

I had a set years ago but never used them. I'm 95% certain they were off a 302 XT GT
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