qdeezie

You're wrong. How does more air flow through smaller holes? Holley based their Systemax II intake off the truck intake along with Saleen.

Mustang HO Left | Truck Center | GT40/Cobra/Explorer Right

qdeezie

For further reference, here's a pic of the Holley Systemax, which outflows the GT40. Notice the resemblance?

LOCO LAPTOP

I'm pretty sure that it was all 5.0 trucks from '94-up have rollers, but not 5.8's

Saltlife

Do your research. I converted this 302 flat tapped to roller what I did:

the "-" are your needs.

-Roller cam (you could go mild)
GT40 Heads
GT40 upper and lower intake (with spacer)
-Roller rockers
-Roller lifters (No need in changing the spring or rods unless you want to)
EV6 fuel injectors
-Double roller timing chain (you do not need but good to replace and get a stronger one)

I am doing the six liter tune up (with bumped timing): http://www.fullsizebronco.com/forum/...ad.php?t=63592

The project can be endless if the money is there.

Saltlife

People kill for those GT40 intakes to replace the intakes in Mustangs and bronco 302s I wonder why ford would have put a higher power motor in the explorer and a less involved intake?

Your motor only needs but so much intake. whether its a 4" or 1" your motor is only going to pull what is needed. The flow design of the GT40 intakes are what people get at.

Saltlife

I am replacing a 95 tapped 302 in a Bronco with this roller motor. It has a stock 302 that is tapped.

And by you saying all 5.0s had roller cams yes thats why I said should go mild. Roller rockers and lifters I don't think so which without is not making it a full roller motor.

qdeezie

Ford put it in the Explorer for hood space. Put a truck 5.0 intake under the hood of an Explorer and the hood would not close. Plus they already had the technology there off the Cobra Mustangs, so it wouldn't cost them more development dollars to come out with a new intake. It was simply a plug and play feature for Ford.

Regarding why people want it in Mustangs, they do it because it is cheap and it requires no hood modifications.

As far as Broncos, most are blindly following what Mustangers do. In some of the older formerly carbureted model Broncos, it's once again a matter of hood space, but for the later Broncos, there is no good reason not to go with the truck intake.

Saltlife

Maybe I have been mislead but have read the design of the flow is what people are after. Either intake you will get what your motor wants. The GT40s always a different choice intake rearrangements.

qdeezie

Here are my thoughts in doing an apples to apples comparison of the 96 F150 vs 96 Explorer. Using Cars.com as my source.

-The Explorer V8 has 210 HP. Using GT40 heads and the GT40 Intake.
-The F150 V8 has 199 HP. Using E7 Heads and the Truck Intake
-Both use the same camshaft.

If the GT40 heads are worth, let's say a 20-40hp increase, does it reason to say that the F150 would put out more HP than the Explorer if it had the GT40 heads?

What is the other difference between the two engines? It has to be the intake right?

The GT40 intake is a good piece. I won't deny that at all, but what I'm getting at is that it's not the best decision when you already have a better flowing piece to start with.

flareside crazy

so are these helpful for my engine or harmful lol