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World Products SB-Ford Windsor Jr Cast Iron Heads

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Old 01-30-2008, 09:59 PM   #1
cougarfan088
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Default World Products SB-Ford Windsor Jr Cast Iron Heads

are these heads any good or are they just a a stock replacement with no performance?
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Old 01-30-2008, 10:35 PM   #2
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Default RE: World Products SB-Ford Windsor Jr Cast Iron Heads

no they are decent cast iron heads that have bigger valves than stock e7's and gt-40's...they are a step above gt-40's expecially if they have 2.02 valves
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Old 01-30-2008, 10:39 PM   #3
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Default RE: World Products SB-Ford Windsor Jr Cast Iron Heads

The flow numbers vs the port size I've seen is poor. There are better heads out there, you get what you pay for.
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Old 01-31-2008, 02:19 AM   #4
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Default RE: World Products SB-Ford Windsor Jr Cast Iron Heads

We just installed these on my friends bronco and we have had nothing but problems. They didnt use the correct pattern on the head so the power steering and alternator brackets did not bolt in correctly. nor did they drill the right size holes so we need to retap everything. We called them up and they said tough ****. worse C/S ever!
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Old 01-31-2008, 08:23 AM   #5
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Default RE: World Products SB-Ford Windsor Jr Cast Iron Heads

i have a set of the senior heads and they flow great. i have had no problems out of them at all. the flow well enough to make 550rwhp through a c4. must flow pretty good imo
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Old 01-31-2008, 09:14 AM   #6
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Default RE: World Products SB-Ford Windsor Jr Cast Iron Heads

they certainly are better heads than early 351w's or GT40 flavors, but they are also an older aftermarket design which means they are not as good as alot of the other heads on the market nowadays.

i wouldnt buy them new, but i would use them if i came across a good deal on a set
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Old 01-31-2008, 09:19 AM   #7
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Default RE: World Products SB-Ford Windsor Jr Cast Iron Heads

I got a set of windsor sr's on my 347 and they are monsters. If your not worried about weight and the prestige or aluminum heads then hell yea go for it if there a good deal.
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Old 12-18-2008, 05:13 PM   #8
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Originally Posted by 67mustang302 View Post
The flow numbers vs the port size I've seen is poor. There are better heads out there, you get what you pay for.
Ill dredge up an old thread here, since I have a set of these heads Im thinking about porting. What 67mustang302 said is about the same conclusiong Ive come to about these heads, but it seems like most people that have them say theyre good heads. While the relocated spark plug angle is a pain in the *** to get headers that fit, the latest version of ford 302 heads (gt40P) has the plug moved even more, so World Products/Roush must have been onto something. Plus, I like the heart shaped combustion chamber they have, as it seems like it should be pretty efficient. The 180cc intake runners that cant even flow as much as most 170cc heads out now obviously leaves a lot to be desired. The flow at low valve lift is terrible. My question is: does anyone have enough experience to say where the ports need work, intake and exhaust? I dont like the thought of haphazard grinding. I know there are much better heads out there for cheap, but these are free, and if I can make them work, I dont have a problem putting time into them. I guess my second question is: would these be too much for a 306 running 10:1, trick flow stage 1 cam, performer RPM air gap, 2500 stall, c4, 3.55 gear, 3200lb car?
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Old 12-18-2008, 05:50 PM   #9
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My opinion is thay they are a decent head. I especially like them in engines that will rack up a lot of miles. Never had a problem with them. Just cleaning up the bowl area seems to really wake them up. It's easy to make 450 hp without anything exotic running on pump gas with excellant street manners.
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Old 12-18-2008, 05:58 PM   #10
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My opinion is thay they are a decent head. I especially like them in engines that will rack up a lot of miles. Never had a problem with them. Just cleaning up the bowl area seems to really wake them up. It's easy to make 450 hp without anything exotic running on pump gas with excellant street manners.
What about the millions of engines with aluminum heads rolling off the assembly line daily? What about repairability? They are a fair head at best. They were GREAT in 1994
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Old 12-18-2008, 06:08 PM   #11
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I have the World Windsor Sr/Roush 200 heads on my 306. I recently ran a 12.8 with these heads going through the traps at 6200 in 3rd gear. I jumped up to 4.56's out back now and hoping to get some much better passes this spring.
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Old 12-18-2008, 06:18 PM   #12
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What about the millions of engines with aluminum heads rolling off the assembly line daily? What about repairability? They are a fair head at best. They were GREAT in 1994
I just said they were a decent head. I like them where weight isn't an issue. Did I mention a freakin thing about not liking aluminum heads? The poster asked about these heads. I posted MY OPINION. You can repair most Iron heads if you know what your doing.
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Old 12-18-2008, 06:22 PM   #13
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I just said they were a decent head. I like them where weight isn't an issue. Did I mention a freakin thing about not liking aluminum heads? The poster asked about these heads. I posted MY OPINION. You can repair most Iron heads if you know what your doing.
No, but what does racking up miles have to do with an iron head? I know exactly what you were implying. When a dropped valve blows a hole in the chamber your not fixing anything, you know this.
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Old 12-18-2008, 06:32 PM   #14
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No, but what does racking up miles have to do with an iron head? I know exactly what you were implying. When a dropped valve blows a hole in the chamber your not fixing anything, you know this.
Again you read more into my post. I never said they could all be fixed. I hope you know what I'm thinking now
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Old 12-18-2008, 06:39 PM   #15
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Again you read more into my post. I never said they could all be fixed. I hope you know what I'm thinking now
Ok I was just curious because you said the same thing about an iron head and racking up miles in another post, simply implying aluminum heads wont go the distance an iron head does.
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Old 12-18-2008, 07:11 PM   #16
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Ok I was just curious because you said the same thing about an iron head and racking up miles in another post, simply implying aluminum heads wont go the distance an iron head does.
Unless it has torque to yeild headbolts the chances of an aluminum head spiting coolant is higher. Now keep in mind I didnt say they all would or most would. Any time you put two differant metals on the same engine they cool at differant rates which increases the chance of head gasket failure. It doesnt worry me enough to pull the aluminum heads off of my car or stop me from installing them on someone elses car. I'd feel more comfortable traveling cross country using a cast iron head. I did enough head gaskets on ZZ502, ZZ 350s and Ford Crate motors to see a pattern. It still wouldn't stop me from using them but the thought would be on my mind from time to time headed out through Utah or Navada
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Old 12-18-2008, 07:16 PM   #17
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Unless it has torque to yeild headbolts the chances of an aluminum head spiting coolant is higher. Now keep in mind I didnt say they all would or most would. Any time you put two differant metals on the same engine they cool at differant rates which increases the chance of head gasket failure. It doesnt worry me enough to pull the aluminum heads off of my car or stop me from installing them on someone elses car. I'd feel more comfortable traveling cross country using a cast iron head. I did enough head gaskets on ZZ502, ZZ 350s and Ford Crate motors to see a pattern. It still wouldn't stop me from using them but the thought would be on my mind from time to time headed out through Utah or Navada
I understand all this very well, still doesnt explain the millions of cars that travel cross country with iron blocks and aluminum heads. There are far more advantages to aluminum, there is literally not one downside to them. Anyways those windsor jr's are ok, nothing to get real excited over though.
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Old 12-18-2008, 07:36 PM   #18
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I understand all this very well, still doesnt explain the millions of cars that travel cross country with iron blocks and aluminum heads. There are far more advantages to aluminum, there is literally not one downside to them. Anyways those windsor jr's are ok, nothing to get real excited over though.
A lot of aluminum headed engines use torque to yeild bolts. I'm not disputing the advantages of an aluminum head. I like the ease of repair, I like the fact you can increase the compression ratio with Aluminum, the light weight and the ease of porting. Back in the day before so many came on the market we would take factory GM Big Block Chevy aluminun castings and add more meat to bottom of the ports so we could enlarge the ports. With a little work the Windsor Jr.s do a good job. Having nothing but good experiance with them I won't say anything bad about them. I had customers that just didn't want an aluminum head so we sold them Windsor Jr, Iron Eagles, Merlin or whatever they wanted. Never a problem with them always produced good power and priced well.
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Old 12-19-2008, 03:57 PM   #19
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Portmaster, woodsy, take it easy! Jeez! lol
Zach, Im sorry, but I would be embarassed to admit I have a cylinder head that big and run that slow in anything but a 5500 lb truck.
It sounds like they can be made to flow with just a little work, which is what I suspected anyway. Someone else posted a link to an article on FordMuscle.com which mentions a company that claims they can CNC port these heads to flow as much as a Motorsport/Canfield "Z" head.
http://www.fordmuscle.com/archives/2...engineairflow/

EDIT: I just called Total Engine Airflow, the company mentioned in the FordMuscle article, and they said they dont even port the windsor jr anymore. They highly recommend the Twisted Wedge head, which is what Ive heard some other top engine builders say is the best windsor head out there right now. Porting cost is around $900 and their phone number has been changed from the one listed in the ad. New number is: 1-330-634-2155
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Old 12-19-2008, 06:36 PM   #20
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The Windsor Jr's work pretty good on my street/strip fox. Best track time is an 11.35 @ 119. 351w, solid cam, fully balanced, vic jr, 750DP, roller C4, 8.8 spool, 4.56 gears, 26 inch ET Drags. Untouched Windsor Jr's. This winter I think I'm getting a set of AFR 185's. I got to break into the 10's!

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Old 12-19-2008, 06:36 PM
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