Gt40-P vs. Windsor Jr's

dcurtis · Aug 15, 2007

Trying to decide which ones will make more power, the other parts will be a 10.1 compression stock stroke short block, an anderson n-41 camshaft, 1.6 pro magnum roller rockers, 70mm tb, 76mm maf, 24lb injectors, 155lph fuel pump, and a k&n filter in the stock box.
Judging by the parts listed which heads would you recomend, they will be getting a mild port and polish work before installation also.
What intake would you recomend to go with this also?

Thanks for your help and suggestions.

91 HATCH · Aug 15, 2007

use thumper ported e7te heads

http://www.hunterstyle.com/thumper/headflow.php

ninety15.0 · Aug 15, 2007

Windsor Jr...do you mean Victor Jr's? Either way ported E7's will not cut it if you are looking for a big head. I think the Gt-40p's make a nice street/strip head. With a little bit of massaging they will be a decent performer...on a budget too!

87AODGT · Aug 15, 2007

go with the windsor jrs, with a mild port job they'll get the job done

dcurtis · Aug 15, 2007

ninety15.0 said:
Windsor Jr...do you mean Victor Jr's? Either way ported E7's will not cut it if you are looking for a big head. I think the Gt-40p's make a nice street/strip head. With a little bit of massaging they will be a decent performer...on a budget too!

They are World Products Winsor Jr. Heads, 1.94 intake, 1.6 exhaust, 180cc runners and 58cc heart shaped chambers, and have dual springs good to .600 lift.
They also come with screw in rocker studs and guide plates.

dcurtis · Aug 15, 2007

87AODGT, have you ran your car with the ported windsors, if so whaat were your times, hows your power range rpm wise whats it pull to? With the f cam it should be close to mine with the n41 cam right. They are close to the same specs other than I have alittle less on the intake duration.
Also how does the eddy rpm 2 match up with your combo? I don't have an intake yet.

87AODGT · Aug 15, 2007

haven't run it yet after swapping to 5 speed and gettin rid of the S trim so I have no times for that, but it pulls nice right up to 6200, haven't tried any higher than that sorry I don't have more for ya but I haven't been driving the car too much lately

dcurtis · Aug 15, 2007

I'm going to go ahead and get the windsor jr heads and a street heat intake to go with the rest of the combo, when its all together and tuned what kind of times should it be capable of in the 1000 foot?, we dont have a quarter track here, just a 1000 footer, I also have an auto tranny and 3.73 rear end on 26X8 drag slicks with a 2600 stall.

5spd GT · Aug 16, 2007

dcurtis - Where you from? I got a 1000 ft. track as well...

Assuming everything is installed correctly, similar weight to most foxes, and driver capable...10's in the 94-99 mph range...just depends on a lot of factors...

Go with the Windsor Jr's, the Gt-40P's require a special header...

rpm182000 · Aug 16, 2007

5spd GT said:
dcurtis - Where you from? I got a 1000 ft. track as well...

Assuming everything is installed correctly, similar weight to most foxes, and driver capable...10's in the 94-99 mph range...just depends on a lot of factors...

Go with the Windsor Jr's, the Gt-40P's require a special header...

i run stock headers on my p-heads just use 90 degree boots and you will be ok. the only trouble you will have is you cant install a plug in #6 you have to remove header

TomCat · Aug 17, 2007

rpm182000 said:
i run stock headers on my p-heads just use 90 degree boots and you will be ok. the only trouble you will have is you cant install a plug in #6 you have to remove header

Mac shorties on mine and it's the same deal, I can live with it

5spd GT · Aug 17, 2007

Excellent info, I didn't know that, thanks!

So the # 6 plug has to have the header removed...nice to know.

BK_CAULEY · Aug 17, 2007

5spd GT said:
Excellent info, I didn't know that, thanks!

So the # 6 plug has to have the header removed...nice to know.

or do like i did and take a torch heat the area up and beat a crease into it and it works great then.

dcurtis · Aug 17, 2007

5spd GT said:
dcurtis - Where you from? I got a 1000 ft. track as well...

Assuming everything is installed correctly, similar weight to most foxes, and driver capable...10's in the 94-99 mph range...just depends on a lot of factors...

Go with the Windsor Jr's, the Gt-40P's require a special header...

Same as you, do you go to Centerville?

5spd GT · Aug 17, 2007

dcurtis said:
Same as you, do you go to Centerville?

Yes sir What town you from? Dardanelle, Russellville, or in that area.

I live in between Conway, Little Rock, and Morrilton in a small town...

My fox below ran 10.5 at 99.31mph with afr heads, fti cam, performer intake, 65mm throttle body, 75mm MAF, 1 5/8" longtubes, offroad H, flowmasters...on nitto drag radials with all accessories (except smog)...at 3,380lbs or so...

dcurtis · Aug 17, 2007

About 20 miles west of russellville in clarksville, I try to get there at least every other week or so. Hopefully I will be running my stang by late feburary or so, I am having to build it piece by piece so it may take a few months to get it done, I am going to do the 5 lug swap, wheels, lowering springs and build the engine all at the same time so my stang will be out of comission for a while, but it will be well worth the wait.

5spd GT · Aug 17, 2007

dcurtis said:
About 20 miles west of russellville in clarksville, I try to get there at least every other week or so. Hopefully I will be running my stang by late feburary or so, I am having to build it piece by piece so it may take a few months to get it done, I am going to do the 5 lug swap, wheels, lowering springs and build the engine all at the same time so my stang will be out of comission for a while, but it will be well worth the wait.

Sounds good, you got patience

I just passed thru Clarksville today...made a trip to Fayetteville/Rogers...

Watch out for them state troopers in Clarksville - as you know, one of the headquarters

dcurtis · Aug 18, 2007

5spd GT said:
Yes sir What town you from? Dardanelle, Russellville, or in that area.

I live in between Conway, Little Rock, and Morrilton in a small town...

My fox below ran 10.5 at 99.31mph with afr heads, fti cam, performer intake, 65mm throttle body, 75mm MAF, 1 5/8" longtubes, offroad H, flowmasters...on nitto drag radials with all accessories (except smog)...at 3,380lbs or so...

Do you or have you ever seen the blue notch with the cowl hood and draglites that runs in the 6's, I think last week he ran around 6.7 or so, may have been faster, I forgot but it's a fast ass notch.

SMOKEDYA · Aug 18, 2007

The GT40P's are good head's. I have a set ported polished and made 301/338 at the wheels on a 302. With a best of 12.2 in the 1/4. As far as the plug deal? Well i dont have any trouble getting plugs and wires? I have mac L/T's with ford racing blue 9MM wires. peace

john

5spd GT · Aug 18, 2007

dcurtis said:
Do you or have you ever seen the blue notch with the cowl hood and draglites that runs in the 6's, I think last week he ran around 6.7 or so, may have been faster, I forgot but it's a fast ass notch.

It rings a bell...

I have only been up there 2 times this year...been busy on Saturday nights...

Gt40-P vs. Windsor Jr's

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