world products heads

roworld · Apr 29, 2008

I was talking with a guy at a local machine shop about some work on my stock haeds, he reconmended that I get a set of world products 190's it would be around the same price $650. Does anyone have any experience with these heads how do they perform Ive never herd of them.

347HO · Apr 29, 2008

If you're application is street/some strip... there are a few better iron heads.
RHS and TFS Street Heats.

IMO, these two are better than the Worlds just by the nature of design.

roworld · Apr 29, 2008

347HO said:
If you're application is street/some strip... there are a few better iron heads.
RHS and TFS Street Heats.

IMO, these two are better than the Worlds just by the nature of design.

do have a web address for rhs and tfs street heat.

347HO · Apr 29, 2008

roworld said:
do have a web address for rhs and tfs street heat.

To tell you the truth, it would be much better to find a used set for sale on Ford Boards and have the reconditioned to your specs than it would be to buy them from a dealer or wholesaler full price and just have to go through them again anyhow.
RHS can be found more easily than old High Ports or Street Heats as they are less commonly known as.

Most people just post up a "want ad", and have fairly good success.

Black Sun 5.0 · Apr 29, 2008

I've got the World Products Windsor Jr's. No problems with them or complaints. Not bad for the price and decent if you want to get them ported.

347HO · Apr 29, 2008

Black Sun 5.0 said:
I've got the World Products Windsor Jr's. No problems with them or complaints. Not bad for the price and decent if you want to get them ported.

I'm not saying the Worlds whether Sr. or Jr. won't work or have problems.

The insight I have is they are 1960 technology whereas the RHS and especially the Street Heats are new school as far as design and function.
I'm talking about pushrod pinch, valve placement, larger MCA (minimum cross section), taller exhaust ports, etc...
All that's left for the user is to ensure seat blend into the bowl, seat angle, springs match the cam, guides are perpendicular with the seat, and the deck is straight.

Foxfan88 · Apr 29, 2008

from the specs they list they seem like great heads.
the windsor jrs are 180cc (i think.. may be 185) and come with 1.9/1.6 valves IIRC

the windsor srs are 200cc and come with 2.02/1.6

compared to other heads they seem great. but all the tests i have seen they didnt seem to flow as good out of box as say a twisted wedge or AFR head.

but i am pretty sure they are older heads, and as far as quality i am sure they are good. they have been around for a while and if they were bad then there would be a reputation of them being bad etc.

i am sure they will respond to some porting.

and this is my 2 cents. but if going through the trouble of getting new heads, i would highly suggest getting a set of alum heads. thats where the research is as and out of the box they flow very good. the AFR 165 has killer flow numbers for a smaller runner (165cc) the TFS TWs also flow excellent with their 170cc runner.

there are some nice iron heads but people really dont push them seeing how they weigh so much more they would rather make lighter heads. it would be nice to see some of the aftermarket guys offer their heads in BOTH cast iron and aluminum seeing how iron does have its advantages....

Xterminator03 · Apr 29, 2008

I have a set of World Roush 200 Heads basically World Sr heads with a lil tweaks. I have no problems with them and im very happy.. like the guys say the CNC Alum heads do have better flow numbers on paper. but like the guys at world say that is not the only thing that makes a head. the one thing that is certain is that alum heads are lighter.

347HO · Apr 30, 2008

I have been told on different occasions by three people much, much smarter than I... what a cylinder head flows on a bench is not what the engine sees.

samickguy15 · Apr 30, 2008

347HO said:
I have been told on different occasions by three people much, much smarter than I... what a cylinder head flows on a bench is not what the engine sees.

That's correct...Generally, all that is on a head or intake when being flowed is a piece of clay, not the matching components which affect the flow.

5spd GT · Apr 30, 2008

It is a baseline to compare all cylinder heads, nothing more and nothing less.

Of course an engine sees different pressure differentials, but seeing how they compare at 28" gives a standard to follow.

MCSA is way more important than mean cross section, as alluded too.

World Roush 200cc with 5.00" runner* (est.)

Mean Cross Section: 2.4405

CFM (.200-.600):

129-187-232-257-260

Average (.200-.500): 201.25

CFM Per Square Inch (.200-.600)

52.858-76.623-95.062-105.306-106.535

WP Windsor. Jr. Iron- 180cc with 5.00" runner* (est.)

Mean Cross Section: 2.1965

CFM (.200-.600)

120-165-195-214-226

Average (.200-.500): 173.5

CFM Per Square Inch (.200-.600):

54.633-75.121-88.779-97.429-102.893

World Products W. Sr. - 200cc with 5.00" runner* (est.)

Mean Cross Section: 2.4405

CFM (.100-.500):

61-125-163-198-220

Average (.200-.500):

176.5

CFM Per Square Inch (.100-.500):

51.219-66.789-81.131-90.145

Do whatever your budget can afford.

347HO · Apr 30, 2008

There is NO "mean" cross section.

MCS = Minimum Cross Section.
Do you need more schooling 5speed? LOL

5spd GT · Apr 30, 2008

Mean = Average

Those are not even close to the minimum cross sections.

Fast63 · May 1, 2008

First of all, you can't buy new world products heads for $650. I purchased my Roush 180's for $720 on sale when they first came out about 6 years ago.

Secondly, there are no 190's for Ford from world products.

Thirdly, you're better off with aluminum heads as they are not much more expensive and far superior IMO. Performance cast iron heads are for trying to look stock and keeping in code with racing classes that require iron heads.

Fourthly, when I got my heads, the accessory holes were not drilled right, and I had to modify some brackets. There were also metal shavings around the valve seats. So as with anything, inspect/clean them if you do buy them.

Fifthly, they are NOT 1960 technology anymore. They have a much better casting that has consistent casting surface and a better port design. Roush did some redesigns to them. I am actually surprised they do not flow more on a bench test.

347HO · May 1, 2008

Fast63 said:
Fifthly, they are NOT 1960 technology anymore. They have a much better casting that has consistent casting surface and a better port design. Roush did some redesigns to them. I am actually surprised they do not flow more on a bench test.

How much would you expect them to flow out of the box?
There is nothing new about them. Anything claimed to be improved needs to be posted right here.
Call them up, ask them to send you cross sectional pictures of the "old" heads and of the new heads side by side.
The only way I can see them improved is if you had to go to offset rockers. You cannot just change where the water jackets are located, bolt holes, pushrod location etc.

And to 5speed;
When you can sit at a FLOWBENCH, with two heads that "flow" the same cfm... the one you can't hear flowing is the one with better MCS... and that IS MINIMUM CROSS SECTION. Now observe the amount of water it took to get there.

I am not telling anyone Cross Sectional Average is not important... it is.
Nor am I telling anyone Flow Bench results are useless. As you posted, they are a standard. But you tell me why 28"? Why not post their max flow and how much water it took to get it there?
Because the average person has no clue what they're reading, and how the process works. Hell, I don't know very much and I did it for many years.

PUNISHER RACING · May 1, 2008

great heads the build quality and bang for the buck is excellent, they are just heavy as all hell. love boost and juice you cant kill em!!!!!!!!!

5spd GT · May 1, 2008

347HO said:
How much would you expect them to flow out of the box?
There is nothing new about them. Anything claimed to be improved needs to be posted right here.
Call them up, ask them to send you cross sectional pictures of the "old" heads and of the new heads side by side.The only way I can see them improved is if you had to go to offset rockers. You cannot just change where the water jackets are located, bolt holes, pushrod location etc.

I doubt that have this readily available. Those last few comments sure look familiar from a recent thread in the CI "hypothetical port" pages about water jackets, pushrod location, bolt holes for the intakes, etc.

347HO said:
And to 5speed;
When you can sit at a FLOWBENCH, with two heads that "flow" the same cfm... the one you can't hear flowing is the one with better MCS... and that IS MINIMUM CROSS SECTION. Now observe the amount of water it took to get there.

I am not telling anyone Cross Sectional Average is not important... it is.
Nor am I telling anyone Flow Bench results are useless. As you posted, they are a standard. But you tell me why 28"? Why not post their max flow and how much water it took to get it there?
Because the average person has no clue what they're reading, and how the process works. Hell, I don't know very much and I did it for many years.

The average person does not even know 28". You can not make everyone happy. If they posted max flow and how much "pressure" of water it took to get it there, it would still receive the same style complaints you are saying.

This all looks to familiar. I am not sure why you are telling me this. You said that there was no such thing as a mean cross section. My thesaurus begs to differ.

As stated, Mean = Average. It is the same thing!

Just because I do not use the same acronym as you, does not mean (no pun) that it is not accurate.

Keep helping people out Dana.

347HO · May 1, 2008

5spd GT said:
I doubt that have this readily available. Those last few comments sure look familiar from a recent thread in the CI "hypothetical port" pages about water jackets, pushrod location, bolt holes for the intakes, etc.

Yes it is. I have gone through this with Jay Allen a year or two ago. He has told, shown and explained this to me very clearly. I can use my cylinder head porting lessons and apply them to his lessons.

You keep keeping me honest 5speed!

grainboy · May 1, 2008

windsor Jr's

I have a set of windsor Jr's, and with the right cam and intake work well. Mismatched components can absolutely kill the bottom end, and only give you high end HP. If your short block is anywhere near stock, I would suggest sending your heads to Thumper performance in Florida. This guy lives and breathes ford blue and can make unbelievable power from the E7 castings.
Just my 2 cents.

Fast63 · May 2, 2008

347HO said:
Yes it is. I have gone through this with Jay Allen a year or two ago. He has told, shown and explained this to me very clearly.

Ah, I see what went wrong...

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