Should I build a DOHC 5.8 or Buy a Coyote?

[CJHAMIL]

Once I get back from deployment I am going to completely rebuild my 98 Cobra from the ground up. I am trying to get a list of stuff that I need before the time comes to start the build. I am stuck on what route to go on my engine. I am stuck between doing a 5.4 punched out to 5.8 with 03/04 C heads with and an Aussie intake, or just buying a 5.0 Coyote. Let me know what you guy and gals think.

V/R

Connor Hamilton

 

[Blown_By_You]

Coyote all day long

 

[Murder Snake]

^^^^^^ what he said

 

[d3vst8r96gt]

Coyote will be cheaper and easier. The boss 5.0 intake fits c heads on a 5.4 with adapters from MMR

 

[CJHAMIL]

I wonder which one will make more power.

 

[Mystic-SVT]

Some GT or GT500 heads would compliment a 5.8L much better. Coyote is proven to make good power though with the stock rotating assembly. I think AED has their n/a coyote north of 500hp on bolt ons with comp cams.

 

[CobraHuck]

Coyote. I will be going that route down the road when it's engine time for my '97

 

[na svt]

If you're wanting 500rw or less and don't want huge tq the coyote is the best option. On the other hand, if you're looking for big low and midrange power a 5.8 is the best choice. The 5.8 has its drawbacks as adds quite a bit of weight and requires custom headers which will cost a bunch.

 

[CJHAMIL]

If you're wanting 500rw or less and don't want huge tq the coyote is the best option. On the other hand, if you're looking for big low and midrange power a 5.8 is the best choice. The 5.8 has its drawbacks as adds quite a bit of weight and requires custom headers which will cost a bunch.

I was hoping you would chime in NA SVT. I will go with an aluminum block if I go the 5.8 route. I have the hook up on Ford parts. I can get a 2013 Gt500 block 20% off. I can also get the Coyote under dealer employee price. My goal is to be over 450 rwhp and over 450rwtq. I don't plan on dragging the car a whole lot but I do enjoy spirited driving. I would also like to be able to suprise my buddies cammed 2010 SS and be able to enjoy my car on windy back roads and road courses.

Also would a 5.8 be streetable

 

[na svt]

If high tq is the goal the 5.8 is the best option. With the right cams you would be able to make 500/450 all while keeping the RPMs to 7000.

 

[CJHAMIL]

The 5.8 idea is starting to sound better and better. Are the 03/04 heads still the best idea or should I go with a Gt500/Ford Gt head?

 

[na svt]

03/04 heads will make be sufficient for your goal. The gt heads are expensive and will require a cobra r intake.

 

[CJHAMIL]

Who would be the best to go to for custom cams?

 

[na svt]

Who would be the best to go to for custom cams?

Me

 

[CJHAMIL]

Haha fair enough. How much does a set of custom cams run?

 

[Shaunk]

Depends where you get them from. Mark at bullet does a great job with them as does cam motion. I use a ton of Mark's grinds and so do a lot of top name builders.

 

[Shake&Bake]

I priced a Coyote swap before buying the Vortech...was going to come out around to 10-12k all said and done. And that's with me doing all the labor. Not cheap.

 

[na svt]

Depends where you get them from. Mark at bullet does a great job with them as does cam motion. I use a ton of Mark's grinds and so do a lot of top name builders.

I have bullet grind mine and I work with mark on the specs.

 

[CJHAMIL]

I'm definately going with the 5.8 route. Now to play the waiting game with getting back from the desert and getting the pieces for this puzzle.

 

[Shaunk]

I have bullet grind mine and I work with mark on the specs.

So do most engine builders. No real hidden voodoo behind these cams at this point.