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Old 09-24-2002, 08:10 PM
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Post 351 windsor heads

I have acquired a 351 Windsor engine, early style with two-piece main seal. My question is how I tell if the stock heads are four valve or two valve? The engine came with an Edelbrock manifold. Also is there an easy way to tell the year of the engine?
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Old 09-24-2002, 08:45 PM
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The only stock ford heads that come with 4 valves per cylinder is the 4.6 liter mod motor. All small and big block fords always have come with 2 valves per cylinder.
I think you have been confused with the common reference to 2v or 4v heads. When somebody refers to heads using this phrase they are actually talking about carburators. Back in the day, the entire engine package was matched according to if there was a 2 or 4 barrel carburetor on top of the engine. When you hear sombody say, "i got some 4v heads", they mean "I got some heads off of an engine with a 4 barrel carburetor." These usually have bigger ports and/or valves than the 2 barrel heads. The "V" actually stands for "venturi". Which is the term used to describe the shape of the holes in the carburator. (an hourglass shape that creates a higher vaccum in the middle than the top and bottom, creating a sucking force that draws in the fuel.-designed over 150 years ago by G.B. Venturi, an Italian scientist that had no interest whatsoever in cars) I know its kinda confusing and weird, but I thought the same thing at first.
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Old 09-24-2002, 08:48 PM
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...and on the passenger side of the block in the back right above the starter will be the casting number. It will look something like "C6AE- XXXX" All you need to pay attention to for the year are the first two characters. C=1960 D=1970 E=1980 F=1990
The number after the first letter is the year in that decade.
Sooooo, C6AE would be a 1966 block.
Get it?
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Old 09-24-2002, 10:00 PM
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[quote]I have acquired a 351 Windsor engine, early style with two-piece main seal. My question is how I tell if the stock heads are four valve or two valve?<hr></blockquote>

On the early 351W series, all heads were the same, 2V or 4V engines. It was the 335 Series (351C) that had two different style heads.

As mentioned, the casting number and date above the starter will give you the year of the engine (well actually it will get you in the ball park).
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Old 08-13-2010, 04:33 PM
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Are you the same Doug Renton from Phu Bai 68

Just curious !
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Old 08-13-2010, 05:22 PM
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Originally Posted by Jimmy Grosteffon
Just curious !
Jimmy, first of all this thread is 8 years old, second: he has 25 posts in the last 8 years his last post was in 2002 so he obviously doesn't come to this site too often, so basically he is probably not going to answer you. Send him a private message or email instead of polluting the forum with random questions posted on old threads.
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