2v or 4v heads????
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2v or 4v heads????
Quick question.... I'm building a 360 into a 390 and im seeing a lot about 2v or 4v heads lately.... As a mechanic I've always used to 2v or 4v to describe number of valves per head, and as far as I know there isn't a 4v head for FE engines ... I've seen a few sites that sound like they are referencing a 2bbl or 4bbl carburetor... What exactly are they talking about and what are the differences in the heads?
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In these engines it's 2 Venturi or 4 Venturi, meaning 2 or 4 bbl carbs.
There are no 4 valve FE heads. Even the SOHC and tunnel port heads, the two "most advanced" heads for the FE were both 2 valve heads.
In the realm of the 360 and 390 pickup engines, for any given year, the heads were the same on both engines. In cars, ditto the garden variety 428s and the two years of the 410 and the 390s. Even the 352 and 390 were the same in those years.
(other than performance models)
FE Cylinder Head I.D. and Application Chart
If you are building a stock to mild engine, stock "D2TE" casting number heads are just fine. The next step would be larger valves for those, and after that it's probably more cost effective to step up to aftermarket heads.
There are no 4 valve FE heads. Even the SOHC and tunnel port heads, the two "most advanced" heads for the FE were both 2 valve heads.
In the realm of the 360 and 390 pickup engines, for any given year, the heads were the same on both engines. In cars, ditto the garden variety 428s and the two years of the 410 and the 390s. Even the 352 and 390 were the same in those years.
(other than performance models)
FE Cylinder Head I.D. and Application Chart
If you are building a stock to mild engine, stock "D2TE" casting number heads are just fine. The next step would be larger valves for those, and after that it's probably more cost effective to step up to aftermarket heads.
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
2v vs. 4v in Ford-land usually describes small-block heads (289/302/351W).
For the FE series, the big difference between 2bbl carb and 4bbl card was (usually) total compression which was done with the pistons. The heads were pretty much the same.
** Of course, there were some differences in certain FE engines in regards to the heads, but overall, 2v vs. 4v was not an "FE" thing for the most part.
For the FE series, the big difference between 2bbl carb and 4bbl card was (usually) total compression which was done with the pistons. The heads were pretty much the same.
** Of course, there were some differences in certain FE engines in regards to the heads, but overall, 2v vs. 4v was not an "FE" thing for the most part.
Cargo Master
Joined: Dec 2015
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From: Harned, Ky
Most times when we're talking about Ford engines and someone refers to 2 bbl or 4 bbl heads, they're usually talking about a 351 Cleveland, on occasion talk about the 69 351 Windsor 4 bbl heads will come up but no often.
If anyone referred to FE heads as 2bbl or 4bbl heads they got educated real quick.
If anyone referred to FE heads as 2bbl or 4bbl heads they got educated real quick.
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