Progress Thread Finally got a new truck

[Mustang5L5]

I think I've said this a few times on this forum.

A buddy put together a VERY fun, simple combo that I had fun driving. It was a GT40P headed 306, with a B303 cam, and a Cobra intake and supporting mods. Car was a 5-spd, with factory 3.08's. It was FUN. Plenty of power for the street and to have a blast with.

 

[Black1987]

I have seen personally GT40ps make over 300
Little fuzzy memory from our cruise in group.

Local guy made 305hp to the wheel with:
Ported GT40ps, angled valve job. portrd
Explorer intake, Tlower
Matched 75mm throttle body and 75mm MAF
30lbs injectors
Anderson PowerPipe
Anderson cam N-41
Roller rockers
Taylor wires, screaming demon coil.
255lph pump
Tuned on 93

I made in the 270s with
GT40ps, smoothed but basically untouched
Crane 1.7 roller rockers on beehives,
Cobra intake,
75mm maf and 70mm Tb with
24lbs injectors
255lph pump
14 degrees timing
SVE CAI
No tune, just fun dyno rollers at a meet.

Just to give you a reference

 

[BlakeusMaximus]

I have seen personally GT40ps make over 300
Little fuzzy memory from our cruise in group.

Local guy made 305hp to the wheel with:
Ported GT40ps, angled valve job. portrd
Explorer intake, Tlower
Matched 75mm throttle body and 75mm MAF
30lbs injectors
Anderson PowerPipe
Anderson cam N-41
Roller rockers
Taylor wires, screaming demon coil.
255lph pump
Tuned on 93

I made in the 270s with
GT40ps, smoothed but basically untouched
Crane 1.7 roller rockers on beehives,
Cobra intake,
75mm maf and 70mm Tb with
24lbs injectors
255lph pump
14 degrees timing
SVE CAI
No tune, just fun dyno rollers at a meet.

Just to give you a reference

Thanks @Black1987, this is the info I’m looking for. I know you can have a decent set up with those and have some fun.

 

[Black1987]

Thanks @Black1987, this is the info I’m looking for.

Its a very budget friendly setup, just know you can possibly pick up aluminum used heads after paying for port work.

Also the GT40ps heads that cracked over 300hp

As you can see they were worked

Also

Six Budget Ford Heads That Work - Car Craft Magazine - Hot Rod

We go hands on as we bolt-on six budget Ford heads onto our Ford Racing Boss 302 crate engine to see which is the best bang for your buck. The results might surprise you so see it for yourself in the February 2013 issue of Car Craft Magazine. six budget ford heads that work

www.hotrod.com

 

[BlakeusMaximus]

Well, hopefully I can find a set of gt/40 heads that don’t need much or anything. I understand that can snowball.

 

[2000xp8]

From my thread that I referenced on the last page:


You're right though, I have no first hand experience with them. But if their numbers hold true they don't seem like they'd be horrible for <$1000. It's enough for me to give them a shot and I think that anyone on a budget might want to consider them as well. Financially, <$1000 compared to >$1300 for TF's seems to be worth the look. There are other options as well. FloTeks, for example, have been run in a magazine comparison and had pretty good marks there. Again, that link is also in that thread. You can get Floteks for <$1000 as well, but on paper they don't perform as well as the Pro Maxx heads. And since hardly anyone has spoken up about them to give them a "yay" or a "nay" most everything said about them is hearsay, so all we have to go from is what they've advertised.

You can't really compare them on a supercharged car, too many variables.
I'd like to see them on a stock shortblock all motor.
I'm not so sure about advertisements either. If that were the case CAI's would be netting 25hp.
By no means am i saying they can't be effective, but i'm no guinea pig when you can just buy the sure thing for another $300.

On another note, it's funny to hear you guys call gt40 iron heads old school. Back in the day they weren't even around during fox production other than real cobra's for the most part. Explorer's didn't get them until 1996 and it was a few years later before they were plentiful in the junk yards before they really caught on.

Lemon, as far as nitrous. Hell no.
It amount's to pretty much zero fun in a street car.
When i was a kid i got outrun by a car, my solution was a 100 shot (which would not have made up the 2 seconds it would have taken to beat this car). I played around with it for a while, but there really was no enjoyment. It's purposeful on a race car, but on a street car, it's pretty much just worthless. A few full throttle blasts and you are out 50 bucks for a refill.

 

[BlakeusMaximus]

You can't really compare them on a supercharged car, too many variables.
I'd like to see them on a stock shortblock all motor.
I'm not so sure about advertisements either. If that were the case CAI's would be netting 25hp.
By no means am i saying they can't be effective, but i'm no guinea pig when you can just buy the sure thing for another $300.

On another note, it's funny to hear you guys call gt40 iron heads old school. Back in the day they weren't even around during fox production other than real cobra's for the most part. Explorer's didn't get them until 1996 and it was a few years later before they were plentiful in the junk yards before they really caught on.

Lemon, as far as nitrous. Hell no.
It amount's to pretty much zero fun in a street car.
When i was a kid i got outrun by a car, my solution was a 100 shot (which would not have made up the 2 seconds it would have taken to beat this car). I played around with it for a while, but there really was no enjoyment. It's purposeful on a race car, but on a street car, it's pretty much just worthless. A few full throttle blasts and you are out 50 bucks for a refill.

I guess calling them old school is going a little to far back. Im talking early-mid 2000's.

 

[LILCBRA]

You can't really compare them on a supercharged car, too many variables.
I'd like to see them on a stock shortblock all motor.
I'm not so sure about advertisements either. If that were the case CAI's would be netting 25hp.
By no means am i saying they can't be effective, but i'm no guinea pig when you can just buy the sure thing for another $300.

Understandable. That was the easiest to quote as it was the first one I come across in that thread. Here are a few others:

These are what I have my eye on. They were on sale a while back but I wasn't in a position financially to drop the money on them yet. I'm in a much better place now since selling my camper a few weeks ago, so I'm keeping my eye on them.

What are your impressions on them so far?

I have not driven the car yet, but it idles real good. I like them the castings looked great.

In a 87-93 maf car i see no issue except they do not have egr passages.

Sure, I dont have any quantifiable data yet as I am still buttoning mine up but @KZGUNS has a set of them on his car.

As an aside I have customers using the Ported versions [205-225] on turbo 351's and running down in the 8's range shifting gears.

And I agree about not wanting to be a guinea pig. But people have the option of spending more money to have the heads flowed to see if their claims are on point or if they're bogus too. Until a third party comes up and tests them and discloses the data, their advertised numbers are all we have to go from. But the article that @Black1987 referenced is the same one I referenced in my thread:

Six Budget Ford Heads That Work - Car Craft Magazine - Hot Rod

We go hands on as we bolt-on six budget Ford heads onto our Ford Racing Boss 302 crate engine to see which is the best bang for your buck. The results might surprise you so see it for yourself in the February 2013 issue of Car Craft Magazine. six budget ford heads that work

www.hotrod.com

They give some insight into the FloTek heads. They apparently were going to put the Procomp heads through their ringer but didn't get a hold of them for whatever reason. It would've been nice to see that as well as a set from Pro Maxx. Maybe a magazine will step up at some point and get it done, but I'm not holding my breath. So it boils down to word of mouth and anyone willing to jump in. Like I said, I'm holding out until Black Friday to see if they'll throw a discount on them.

 

[KZGUNS]

I have no issues with my promaxx heads. My head guy said they looked great and he could improve them with a little bit of porting but didn't think it would be a huge improvement. I thought the springs were a bit light so i swapped em out. @a91what also runs them and i think he's happy with them.

 

[a91what]

Yes, in the next few months I will be doing a tuning video series for my youtube channel. I will include some dyno runs on the motor breathing through the turbos, then with low boost applied.
I'm still a ways out from that.

 

[TOOLOW91]

I’m usually on the wilder side of things but . I think a set of gt40x heads or 170 twisted wedge heads would be perfect and a lot of fun .

I’d maybe do an Anderson n41 cam instead . I think it would work with the Tfs head but dont hold me to that .

Harland sharp 1.6 rockers on it if it’s the Tfs 170 heads ( upgrade the guide plates and studs to 7/16th )

65mm throttle body

maybe port the explorers lower intake ( TMoss is very affordable he did mine . )

Pro m 75mm maf .

Anderson claims 310/340 like this :
Stock short block, TFS T.W. Heads, N-41 camshaft, TFS Track Heat, 30# injector, 70mm T.B. MSD 6al, PMS, BBK 1.625" long tubes, BBK Cold Air Kit, 75mm Bullitt Mass Air, 93 oct fuel.

 

[Black1987]

I’m usually on the wilder side of things but . I think a set of gt40x heads or 170 twisted wedge heads would be perfect and a lot of fun .

I’d maybe do an Anderson n41 cam instead . I think it would work with the Tfs head but dont hold me to that .

Harland sharp 1.6 rockers on it if it’s the Tfs 170 heads ( upgrade the guide plates and studs to 7/16th )

65mm throttle body

maybe port the explorers lower intake ( TMoss is very affordable he did mine . )

Pro m 75mm maf .

Anderson claims 310/340 like this :
Stock short block, TFS T.W. Heads, N-41 camshaft, TFS Track Heat, 30# injector, 70mm T.B. MSD 6al, PMS, BBK 1.625" long tubes, BBK Cold Air Kit, 75mm Bullitt Mass Air, 93 oct fuel.

Just curious what TMoss is charging now days since his son has been helping. ROM

 

[TOOLOW91]

Just curious what TMoss is charging now days since his son has been helping. ROM

They charged me 260 ported to a 1262 flowed before an after and returned . He got it back fast too .

 

[BlakeusMaximus]

I’m usually on the wilder side of things but . I think a set of gt40x heads or 170 twisted wedge heads would be perfect and a lot of fun .

I’d maybe do an Anderson n41 cam instead . I think it would work with the Tfs head but dont hold me to that .

Harland sharp 1.6 rockers on it if it’s the Tfs 170 heads ( upgrade the guide plates and studs to 7/16th )

65mm throttle body

maybe port the explorers lower intake ( TMoss is very affordable he did mine . )

Pro m 75mm maf .

Anderson claims 310/340 like this :
Stock short block, TFS T.W. Heads, N-41 camshaft, TFS Track Heat, 30# injector, 70mm T.B. MSD 6al, PMS, BBK 1.625" long tubes, BBK Cold Air Kit, 75mm Bullitt Mass Air, 93 oct fuel.

Can you fill me in a little more on the X heads?

 

[TOOLOW91]

Can you fill me in a little more on the X heads?

Aluminum Gt 40 , I think they may flow slightly better

 

[BlakeusMaximus]

Aluminum Gt 40 , I think they may flow slightly better

Ahh. What did Ford put those in? Lightning? FRPP's?

 

[Mustang5L5]

Ahh. What did Ford put those in? Lightning? FRPP's?

Nothing. Strictly aftermarket. I think they stuck some on their late 90's early 2000's crate motors too.

I'm happy with my Tmoss intake work as well, although the porting work by BigDogsPorting has caught my eye lately. I know they are catching a ton of flak over on Corral though with their postings.

 

[TOOLOW91]

Nothing. Strictly aftermarket. I think they stuck some on their late 90's early 2000's crate motors too.

I'm happy with my Tmoss intake work as well, although the porting work by BigDogsPorting has caught my eye lately. I know they are catching a ton of flak over on Corral though with their postings.

I’m not sure I buy big dogs numbers he’s getting. Tom and Matt have built a great rep for themselves

 

[TOOLOW91]

Ahh. What did Ford put those in? Lightning? FRPP's?

Frpp stuff . Originally was the y303 svo stamped ones . I used to want them purely for the svo marking then it went to the x303 head I believe

 

[2000xp8]

I had both sets of x's and Y's.

I got the Y's NIB for $699, which was quite a deal. They were said to be take offs from crate engines, but it was odd because they literally came packaged in their own factory boxes new.

I think i got the X's for $500 for the pair.

I wouldn't hesitate to buy X's and send them to the machine shop. A little cleanup and valve work and they will produce more than 300rwhp with a modest cam and intake.
They just aren't so great out of the box or at whatever ridiculous price they cost new.

I really wouldn't be surprised if X's or Y's could be obtained for $500 or less these days.

I'm telling ya, be really nice to do an all ford racing build, E cam, X's and tubular gt40 on a clean unmolested car.
I'm just a little bit past that point, lol.
Would also be the perfect mods for a 93 cobra.