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Old 02-19-2004, 02:05   #1 (permalink)
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Difference Between 2V and 4V in Clevo

I have a friend who is looking at purchasing a Phase 5 XD. We want to make sure its not a fake. We know it will have the 4V Head, but with out taking the rocker cover off, we dont know how to identify the difference between the 2V and 4V. Is there any difference on the heads that will make this easier to spot the difference.

I know if that a proper Phase 5 will have a plate on the firewall...
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Old 02-19-2004, 02:12   #2 (permalink)
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Re: Difference Between 2V and 4V in Clevo

out side the rocker cover in the corner of the heads there should be a small raised 4 indicating its a 4v, bottom ends are also the same shit nothing special
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Old 02-19-2004, 02:48   #3 (permalink)
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Re: Difference Between 2V and 4V in Clevo

If no one has changed the heads then they will be 2Vs. If they are 4Vs then tyretoaster has explained it.
The Phase5 was done by Phase Autos not Ford so being genuine is not really an issue.
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Old 02-19-2004, 03:06   #4 (permalink)
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Re: Difference Between 2V and 4V in Clevo

As far as i know it was basically just a bolt on fibreglass kit. It is definately not anything special like the real phase falcons.
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Old 02-19-2004, 03:17   #5 (permalink)
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Re: Difference Between 2V and 4V in Clevo

Quote:
Originally Posted by TyreToaster
pulling off the rocker cover wont help, same shit under there but out side the rocker cover in the corner of the heads there should be a small raised 4 indicating its a 4v, bottom ends are also the same shit nothing special

TyreToaster

Where exactly do i need to look at. Sorry, i just want to make sure i am looking at..
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Old 02-19-2004, 03:25   #6 (permalink)
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Re: Difference Between 2V and 4V in Clevo

where the intake manifold meets the heads so the top side of the head the rocker cover will be round as it goes round the corner but the head stays square, that is where the 4 will be, but it shouldnt b a 4v motor anyway by 4v they mean 4 barrel carby not heads and thats nothing to get excited about, unless it actually has 4v's in which case you got big assed heads.
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Old 02-19-2004, 03:56   #7 (permalink)
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Re: Difference Between 2V and 4V in Clevo

OED666: We've had this tread before Have a look at this thread and have a look at the attached picts they clearly show where to look...

2V or 4V?

I don't think all 4v heads have the stamp There are so many different 4v heads. The quickest way would be to remove one of the extractors and have a look at the gasket or the huge port in the head. Take a 2v exhaust gasket along to compare so you know what you are looking for. They might let you have a look you never know.
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Old 02-19-2004, 05:26   #8 (permalink)
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Re: Difference Between 2V and 4V in Clevo

thanks guys, you have been a great help. I dont no much about the nitty gritty of V8's but i knew ppl here would.

Also, 4V heads means 2 inch inlet and 2 inch exhaust ports???

and the standard is 1 1/2 inch???
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Old 02-21-2004, 15:10   #9 (permalink)
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Re: Difference Between 2V and 4V in Clevo

4V does mean the heads TyreToaster, the carby is 4-Barrel standard coz of the fuel it will be using! LOTS!. 4V's have much bigger inlet and exhaust ports - slower airspeed, which is why alot of drag racers use 2V heads to get more airspeed to create a quicker turnaround in fuel burning.

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Old 02-21-2004, 17:51   #10 (permalink)
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Re: Difference Between 2V and 4V in Clevo

Quote:
Originally Posted by ViGiLaNtE
4V does mean the heads TyreToaster, the carby is 4-Barrel standard coz of the fuel it will be using! LOTS!. 4V's have much bigger inlet and exhaust ports - slower airspeed, which is why alot of drag racers use 2V heads to get more airspeed to create a quicker turnaround in fuel burning.

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Ford the manufacturer when stating 4V doesn't mean 4V heads.

By the manufacturer:

2V is two venturi.
4V is four venturi.

According my my owners manual my XC fairmont had a 4V engine in it. Well it did a 4 venturi 351. 351 open chamber 2V heads though.

By engine developers definitions

2V is a small port head.
4V is a large port head.

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