How much is the cost to rebuild a '98 4.6 DOHC Cobra engine? - Ford Mustang Forum
 
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post #1 of 14 (permalink) Old 08-26-2002 Thread Starter
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Talking '98 4.6 DOHC swap questions

What would you guys give for a '98 Cobra engine? It needs to be rebuilt because the bottom end is done, but it has 28,000. What's a rebuild cost for that? (Parts only, I know a master tech that can help me with the rebuild.)

randy964.6
1996 Moonlight Blue Mustang GT
offroad h-pipe, 3 chamber flows, motorsport "c" springs, removed air silencer, '98 17" GT wheels, Clarion 12 disc changer, Viper 650 ESP
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post #2 of 14 (permalink) Old 08-26-2002
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are you talking heads, intake, computer(if required) and everything?
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post #3 of 14 (permalink) Old 08-26-2002
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Normally, it costs less to buy a new one instead of rebuilding an old one.

1996 Ford Mustang Cobra - 80mm C&L Mass Air w/ K&N | Steeda Underdrive Pulleys | Bassani X-Pipe | Mac 3" Cat-Back | Stage I Clutchmasters | Fidanza 13lb Aluminum Flywheel | Steeda Firewall Clutch Cable Adjuster | Steeda Double Hook Clutch Quadrant | FRPP Aluminum Driveshaft | FRPP 4.30 Gears | B&M Short Shifter | 2003 Cobra Wheels | Maximum Motorsports Street & Strip Suspension Package | Brembo Cross Drilled Rotors | Saleen S-281 Spoiler | Pioneer 7400 MP3/CD Deck | Yamaha 150watt Subwoofer.
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post #4 of 14 (permalink) Old 08-27-2002 Thread Starter
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Yeah, a complete engine, oil pan to intake, no computer though.

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1996 Moonlight Blue Mustang GT
offroad h-pipe, 3 chamber flows, motorsport "c" springs, removed air silencer, '98 17" GT wheels, Clarion 12 disc changer, Viper 650 ESP
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post #5 of 14 (permalink) Old 08-27-2002
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you'll need the computer too or you'll run into problems if you got the sohc computer in there...
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post #6 of 14 (permalink) Old 08-27-2002 Thread Starter
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I know, but how much to just rebuild the motor?

randy964.6
1996 Moonlight Blue Mustang GT
offroad h-pipe, 3 chamber flows, motorsport "c" springs, removed air silencer, '98 17" GT wheels, Clarion 12 disc changer, Viper 650 ESP
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post #7 of 14 (permalink) Old 08-28-2002
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I've scoured the net. I cannot find a rebuild kit for those engines. I knew that you would need new rods due to the fracture caps, but even bearings are not available yet. See how much Ford would give you as a core for a new engine...
There aren't internal replacements available yet.
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post #8 of 14 (permalink) Old 08-28-2002 Thread Starter
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Wow, that sucks. Thanks for looking though Adam. Appreciate it!

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1996 Moonlight Blue Mustang GT
offroad h-pipe, 3 chamber flows, motorsport "c" springs, removed air silencer, '98 17" GT wheels, Clarion 12 disc changer, Viper 650 ESP
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post #9 of 14 (permalink) Old 08-28-2002
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As I said above...

It costs less to just buy a new Cobra engine, than to rebuild an old one.

1996 Ford Mustang Cobra - 80mm C&L Mass Air w/ K&N | Steeda Underdrive Pulleys | Bassani X-Pipe | Mac 3" Cat-Back | Stage I Clutchmasters | Fidanza 13lb Aluminum Flywheel | Steeda Firewall Clutch Cable Adjuster | Steeda Double Hook Clutch Quadrant | FRPP Aluminum Driveshaft | FRPP 4.30 Gears | B&M Short Shifter | 2003 Cobra Wheels | Maximum Motorsports Street & Strip Suspension Package | Brembo Cross Drilled Rotors | Saleen S-281 Spoiler | Pioneer 7400 MP3/CD Deck | Yamaha 150watt Subwoofer.
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The 2002 Ford performance catalogue lists a 5.0 liter fitted block (bare block, pistons, rings) and new high flow heads. Build one of these up from the go-fast service parts bin for about 4 grand. It is supposed to make 400 HP and is all Ford. I am going to do that when I get mine paid off so I can pickle the original engine and go hog wild without destroying the collectable value of my car.<p>The numbers matching low mileage bone stock engine will still be there when I am an old geezer ready to sell my classic 01 Cobra.

2001 SVT Cobra Coupe #1947 Steeda G-track Caster/camber plates and Tri-ax shifter I will do no mods that cannot be reversed 100% to original
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Check summit racing equipment. I know they have a kit for both the sohc and dohc motors. Their kit will only have gaskets, bearing, freeze plugs, pistons and rings. maybe some other stuff. don't expect a new crank or rods... you really don't need them any way. As for your heads, contact Sean Hyland motorsports check an issue of MM&FF for an address. Back to the bottom end. Contact a REPUTABLE machine shop in your area that does a lot of performance/race work, and get a price on balancing , machining and assembly. Unless you are running lots of boost, nitrous, or do racing only, I would go with hyperuetectic (I hope I spelled that right) pistons and not forged. Forged won't last as long, and will cause the car to use oil if you drive it before it's completely warmed up.... They are way stronger though. Hope this helps a local machine shop may have other parts sources, so will your ford dealer (parts dept.) Lots of people advertise rebuilt crate motors in MM&FF Lots of forged reciprocating assemblies (crank, rods, pistons) available there too. It's all out there, I promise!

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96 mustang GT
'76 Bronco.. 2' lift, double shocks in front, Blue-printed/balanced 302 crane cam, Edelbrock 500 cfm carb+intake, new paint job and 4.10s by the end of the summer
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Not to sound like an English teacher. but its Hypereutectic... it sounded like you wanted to know..
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post #13 of 14 (permalink) Old 09-02-2002 Thread Starter
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Great thanks for all the info guys.

randy964.6
1996 Moonlight Blue Mustang GT
offroad h-pipe, 3 chamber flows, motorsport "c" springs, removed air silencer, '98 17" GT wheels, Clarion 12 disc changer, Viper 650 ESP
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For pricing on engines , heads, etc go to http://www.karkraft.com/performance_parts.htm

1996 LaserRed Cobra
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