i want a 4v but dont know which to look for
09-17-2006, 02:20 AM
#1
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i want a 4v but dont know which to look for
i want to put a 4V motor in my car instead of a pi swap. i cant afford a 03-04 cobra motor, what others should i look into. also what else will i need to get if i find one at a junk yard. motor and?.......
09-17-2006, 02:30 AM
#2
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RE: i want a 4v but dont know which to look for
Why go junk yard? If you do go junk yard, it would be worthwhile to get the computer and wiring harness, too.
09-17-2006, 02:41 AM
#3
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RE: i want a 4v but dont know which to look for
ORIGINAL: Colorado_Mustang
Why go junk yard? If you do go junk yard, it would be worthwhile to get the computer and wiring harness, too.
Why go junk yard? If you do go junk yard, it would be worthwhile to get the computer and wiring harness, too.
09-17-2006, 04:59 AM
#7
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RE: i want a 4v but dont know which to look for
You can find a used 5.4 4v (navigator, iron block) for $3500, with modest (< 50k) miles... full engine... It's all in knowing where to look. If you want to find one from a junkyard simply be prepared to rebuild it. New will run you $4500-5000. 4.6 4v (aviator, aluminum block) for $4000 NEW complete engine... drop a 99/01 cobra intake manifold, throttle body, and plenum on there, and you have a 99/01 cobra engine for next to nothing, brand new... but of course, the internals are not forged.
I'm not sure which 4v heads either of those have, I guess it depends on the year... the B head is a good guess, maybe the new Navigator engines have the C head? (Wouldn't that be nice
)
Edit: After a VERY small amount of searching, I found THIS...
I'm not sure which 4v heads either of those have, I guess it depends on the year... the B head is a good guess, maybe the new Navigator engines have the C head? (Wouldn't that be nice
)Edit: After a VERY small amount of searching, I found THIS...
Navigator: (98+ Lincoln Navigator)
These 5.4L DOHC heads feature essentially the same intake port design as C heads, however they have a much larger intake port volume than 4.6L castings. Despite the fact these heads feature a relatively small exhaust port, the extra intake port volume could be very beneficial in helping fill a motor of greater displacement—think 5.4L. Expect slightly better midrange torque, and sub 8000rpm horsepower production than even C heads, however the larger intake port size leaves a slim selection of intakes to choose from when utilized on a 4.6L block. Forced induction fans take note, Navigator exhaust ports feature a thicker exhaust divider (while keeping the same overall exhaust port size as B,C, and FR500 heads) that allows coolant to circulate through this vital area. Conversely however, the larger divider can also hurt flow by utilizing additional space in the port.
The real downside to Navigator heads, when used on a 4.6L based motor, is the severe limitation they impose on intake selection. The physically larger 5.4L heads don’t leave a lot of room (when installed on a 4.6L block) between them for an intake plenum to sit—though they do bolt right up. Remember that since Navigator intake ports are essentially clones of those of C heads (just on a larger scale), they too suffer from the same intake port flaws that plague the earlier tumble port design--no short turn or floor in the throat of the intake port.
The Bottom Line: The extra port volume the Navi’s possess could be very beneficial in filling a motor with greater than 281 cubic inches of displacement, or in high rpm N/A street/strip or boosted combinations. Fans of boost should remember the cooled exhaust port divider. Lack of intake availability is the real downfall of this otherwise wonderful casting.
Stock Intake Choices: None (4.6L), 98+ Navigator (5.4L)
Aftermarket/Modified Stock Intake Choices: Al Papitto short runner 99 Cobra (4.6L), sheet metal
Navigator head dimensions: Combustion Chamber: 53cc, Intake Port Vol.: 184cc, Intake Port Entrance: 2.290”x1.400”, Valves: 37mm Int., 30mm Exh.
These 5.4L DOHC heads feature essentially the same intake port design as C heads, however they have a much larger intake port volume than 4.6L castings. Despite the fact these heads feature a relatively small exhaust port, the extra intake port volume could be very beneficial in helping fill a motor of greater displacement—think 5.4L. Expect slightly better midrange torque, and sub 8000rpm horsepower production than even C heads, however the larger intake port size leaves a slim selection of intakes to choose from when utilized on a 4.6L block. Forced induction fans take note, Navigator exhaust ports feature a thicker exhaust divider (while keeping the same overall exhaust port size as B,C, and FR500 heads) that allows coolant to circulate through this vital area. Conversely however, the larger divider can also hurt flow by utilizing additional space in the port.
The real downside to Navigator heads, when used on a 4.6L based motor, is the severe limitation they impose on intake selection. The physically larger 5.4L heads don’t leave a lot of room (when installed on a 4.6L block) between them for an intake plenum to sit—though they do bolt right up. Remember that since Navigator intake ports are essentially clones of those of C heads (just on a larger scale), they too suffer from the same intake port flaws that plague the earlier tumble port design--no short turn or floor in the throat of the intake port.
The Bottom Line: The extra port volume the Navi’s possess could be very beneficial in filling a motor with greater than 281 cubic inches of displacement, or in high rpm N/A street/strip or boosted combinations. Fans of boost should remember the cooled exhaust port divider. Lack of intake availability is the real downfall of this otherwise wonderful casting.
Stock Intake Choices: None (4.6L), 98+ Navigator (5.4L)
Aftermarket/Modified Stock Intake Choices: Al Papitto short runner 99 Cobra (4.6L), sheet metal
Navigator head dimensions: Combustion Chamber: 53cc, Intake Port Vol.: 184cc, Intake Port Entrance: 2.290”x1.400”, Valves: 37mm Int., 30mm Exh.
09-17-2006, 11:58 AM
#8
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RE: i want a 4v but dont know which to look for
The real question is why do you want to go 4v.
I can almost guarentee you that you spend more money per hp for quite awhile on the 4v.
I think alot of people are thinking that they are gonna save money by going with a 4v setup, but it really only makes since if:
a. You have a major hardon for n/a only performance (newsflash: you bought the wrong car)
b. You are planning on exceeding 650 whp
c. You have a blown engine and find a great deal.
I can almost guarentee you that you spend more money per hp for quite awhile on the 4v.
I think alot of people are thinking that they are gonna save money by going with a 4v setup, but it really only makes since if:
a. You have a major hardon for n/a only performance (newsflash: you bought the wrong car)
b. You are planning on exceeding 650 whp
c. You have a blown engine and find a great deal.
09-17-2006, 01:11 PM
#10
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RE: i want a 4v but dont know which to look for
ORIGINAL: travisl1213
$$$$$$$
ORIGINAL: xxkazp3rxx
Fordracing - Mach 1 engine.. 5k
Fordracing - Mach 1 engine.. 5k