Who's Running A Cleveland?

[sen2two]

So anyone here running a Cleveland in there Fox?

I have a 351c 4 bolt main sitting in the garage just aching to hit the streets. I'm just curious if anyone here has or is currently running one... Before I go wild on machining and welding up parts for it, I want to see if more experienced guys would like to share there knowledge and experience.

This will be in a daily driven Fox.

 

[revhead347]

There are one or two guys that have posted their Cleveland swaps in the past. I answered this thread, because the odds of one of those 2 guys seeing it aren't very high. Most people just do Windosrs. Up until recently, there weren't too many good aftermarket parts for the Cleveland. That has changed over night. You can make big power with a Cleveland now if you buy the right heads. Another reason the Windsor is so popular is that most people want to stay fuel injected, and there are factory fuel injection options for the Windsor.

Kurt

 

[hoopty5.0]

Can a Cleveland block hold more power?

 

[sen2two]

Can a Cleveland block hold more power?

Yes.

Easily put, Windsors are truck motors. Clevelands are performance motors. You can build a mean Windsor, but the same effort will have better results in a Cleveland.

 

[sen2two]

There are one or two guys that have posted their Cleveland swaps in the past. I answered this thread, because the odds of one of those 2 guys seeing it aren't very high. Most people just do Windosrs. Up until recently, there weren't too many good aftermarket parts for the Cleveland. That has changed over night. You can make big power with a Cleveland now if you buy the right heads. Another reason the Windsor is so popular is that most people want to stay fuel injected, and there are factory fuel injection options for the Windsor.

Kurt

From what I read, it's incredibly similar to a 351w swap. The only real problem are the headers. They make swap headers, but they are big money. Other than that it seems basic .

I'm sure I'll have plenty of questions that I will be posting though. Since I have been building rotary engine for the last 10+ years and I'm new to the Ford game.

 

[barnett468]

So anyone here running a Cleveland in there Fox?

I have a 351c 4 bolt main sitting in the garage just aching to hit the streets. I'm just curious if anyone here has or is currently running one... Before I go wild on machining and welding up parts for it, I want to see if more experienced guys would like to share there knowledge and experience.

This will be in a daily driven Fox.

hello;

if you are going to spin it more than 5500 often you should do the oiling system repair or it may hurl.

 

[CarMichael Angelo]

I have a 6 cylinder cleveland.

 

[revhead347]

Yes.

Easily put, Windsors are truck motors. Clevelands are performance motors. You can build a mean Windsor, but the same effort will have better results in a Cleveland.

Correct. The Cleveland is actually a superior performance engine. It was designed to make more power and spin higher RPM. It is also a true 90 degree V8, whereas all the Windsor engines are 86.5 degree V8s. This makes the engine more balanced and delivers more torque. The downfall of the Cleveland was it's very short production run from 1970-1974. The aftermarket did not respond with so few produced. At least not until recently. The cylinder heads have been a huge problem unitl now. The only heads available were factory iron castings. Almost all of them were 2V heads (a stupid nomenclature meaning the heads were designed for an engine with a 2 barrel carb). If you were really lucky you could find a set of 4V heads on this side of the Pacific. However, if you really wanted to make power you had to drain your life savings to get a set of 8V heads, which were extremely hard to come by because they only came on a few cars sold in Australia.

Kurt

 

[sen2two]

My motor already has 4v heads. Sadly though, they are the open chamber not closed chamber.

 

[revhead347]

All that info is actually quite irrelevant now, since there a decent number of aftermarket aluminum heads available for less than the cost of 4V and 8V heads.

Kurt

 

[CarMichael Angelo]

All that info is actually quite irrelevant now, since there a decent number of aftermarket aluminum heads available for less than the cost of 4V and 8V heads.

Kurt

In all my years, I've never heard of a set of Cleveland heads referred to as 8v. When, and where were these heads ever used?

 

[revhead347]

They are more commonly referred to as Aussie Heads.

Kurt

 

[90lxwhite]

They are more commonly referred to as Aussie Heads.

Kurt

8v- Australian for heads.

 

[sen2two]

all of the Australian heads I have seen are the 3v heads. I never heard of the 8v heads either.

 

[sen2two]

so is there any truth that the 71 to 73 Mustang Cleveland headers work in the fox body. I have read that a few places. But I am unsure all of its legitimacy.

 

[CarMichael Angelo]

all of the Australian heads I have seen are the 3v heads. I never heard of the 8v heads either.

The 3v heads are aftermarket aussie parts, made by a company called CHI. As far as I know the factory heads from aus use the exact same designator that the US uses to denote the differences between the two variations of the head.

2v open/closed chamber
4v open/closed chamber.

I originally was going to tell you to get a different set due to the fact that you have an open chamber set, but after reading this, I've changed my thinking:
http://pantera.infopop.cc/eve/forums/a/tpc/f/5650045562/m/4131047336

 

[hoopty5.0]

Mike that was a great read! I see what you mean about not needing to change heads.

My only question about this is about the 2v/4v street motor. He never came out and said it, but implied the 2v heads would be easier to use on a lower rpm street motor as the 4v heads with open intake and exhaust really come alive after 4000 rpm. I am assuming this is compared on a stock displacement motor. However, should you choose to increase displacement, would the 4v heads be more advantageous at lower revs?

 

[CarMichael Angelo]

Mike that was a great read! I see what you mean about not needing to change heads.

My only question about this is about the 2v/4v street motor. He never came out and said it, but implied the 2v heads would be easier to use on a lower rpm street motor as the 4v heads with open intake and exhaust really come alive after 4000 rpm. I am assuming this is compared on a stock displacement motor. However, should you choose to increase displacement, would the 4v heads be more advantageous at lower revs?

That goes counter to everything I've ever heard about the heads, (but then again, before i read that article, I thought open chamber heads were prone to detonation)
If I was gonna build a cleveland (other than the 6 cylinder I'm already building) I'd probably opt for the 4v heads just because of their potential. Especially if you intend to build bigger engine.

 

[revhead347]

Waste of time in my opinion when these are available.

http://www.summitracing.com/parts/tfs-5161t005-c01/overview/make/ford

Kurt

 

[hoopty5.0]

Waste of time in my opinion when these are available.

http://www.summitracing.com/parts/tfs-5161t005-c01/overview/make/ford

Kurt

What's the cost difference per hp gained? If I hypothetically was happy with 500 hp, are the tf heads worth using over 4v iron heads on a street car?

And is there an efi intake? Or efi adaptable intake?