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Here is my guess:

Bigger: The modular engines are Bigger because of the heads. They are not bigger from a displacement point of view

Better: The modular engines are Newer in design and construction - arguably better. A tuned 4.6 DOHC will give you over 350hp SAE NET and/or about 300hp at the rear wheels.

Faster: The modular engine generaly revs higher than a Cleveland (although that depends). O-60 times can be faster depending on what Cleveland you are comparing to.

All Aluminum V-8: The earlier 1996 thru 2001 4.6 DOHC Cobra engines were All Aluminum. No 5.4 DOHC engine was aluminum except for the Ford GT engine (but that does not fit well).

Computer Controlled: Modular V-8 will do.

ZF Transaxle: Bolts right up to a Modular - Non Ford block engines will require some mods or a different bell housing.

Fits Better than the 351C: 4.6 DOHC modular just drops right in a '73-74L car under the engine screen and you get a flat firewall !!

Sounds like a 4.6 DOHC , Starts like a 4.6 DOHC

I have seen 4.6 DOHCs in DeTomaso's. I have driven one. I am installing one.

My Guess is a Cobra based 4.6 DOHC 1998 to 2001 Modular engine. The engines were made to race.

B.G.
Last edited by andriyko
Wow Andriyko,

That was very well thought out. I like how you put a lot of thought into your guess. You hit every point.

Now for those that think that we shouldn't modify our cars, please stop reading this now. For those that think Ford is our only option, stop reading this now.

For those with an open mind I hope you find my change as cool as I do.

The engine I decided to go with is 480hp right out of the crate. (and only 410 pounds complete)

http://www.youtube.com/watch?v=VgU_S5Wr7yw

Great guesses everyone...
Scott Bell

quote:
Now for those that think that we shouldn't modify our cars, please stop reading this now.


I have NOT seen an unmodified DeTomaso Pantera. It is all a question of degree.

Great work on the engine swap. Congratulations.

There is a long and ongoing discussion on replacement engines for our Pantera's. There are many great engines available that would fit and do the job. Which one someone choses is a matter of personal preference.

B.G.
quote:
Other than electrics, what were the most difficult parts of this swap?

Jack


I guess the hardest part was turning the intake around. There was an oil sender boss that needed to be milled off and plugged so the intake could be reversed.

The other item was making a new cross member.

But to be honest, it was a pretty easy swap.
quote:
More pictures!!


I am having my son post a photobucket on the project. He should have it done today.

quote:
More details!!!


The motor is an LS376/480 crate motor. 6.2 Liter All Aluminum V8. It is based on the LS3 Corvette motor but has a hot cam installed. It has 10.7:1 compression and has 480HP at 5750RPM. It has 475(lb-ft) of torque at 4500RPM.

What is cool about this motor is the amount of torque it has. It pulls strong in every gear. It has 400(lb-ft) of torque at 2500RPM.

I can be rolling at 10MPH and give it half throttle and it breaks the tires loose.

It is so much more fun to drive then it was before.

I can run an almost flat firewall and access to every part of the motor is much better.

Part of the benefits of this package is the front drive that included a 150AMP Alternator that is controlled by the computer.

Scott
Put almost 200 miles on the car this weekend. Not a single problem.

The car runs so cool the computer doesn't even turn on the radiator fans for almost the entire drive.

The torque of this motor is incredible. And it runs like a factory 2010 car.

I also added a nice stereo system with a 160watt amp and an Ipod interface. Next I will be building a flat firewall.
quote:
Would like to see a list of parts used/needed for this conversion.


Here is a list short list of what was needed:

LS376/480 Crate Motor
Engine Management System with Engine Harness (comes with drive by wire pedal)
Engine Drive System (Comes with 150amp ECM controlled Alternator and AC Pump)
LS to ZF Bellhousing
Fuel Injection Fuel Pump
Flywheel
Clutch
Starter

Stuff to Fabricate are:
Exhaust
Motor Mounts
Removable Cross Member

Of course, there is a small list of other small items that also needs to be done.

quote:
May I ask how much $ that went in this engine swap?


The crate motor was about $6500. The drive, Electronics, Bellhousing, Fuel Pump, Flywheel, Clutch, Starter, etc... was about $3000.00.

For me it worked out good as I had about a $2000.00 bill to repair the 351C. I ended up selling most of the good parts I didn’t need from the old setup for almost $3000.00 so my net out-of-pocket cost for the swap was less than $5000.00.

quote:
You know how much weight you saved over the rear wheels too?


The crate motor was advertised at 410lbs. I am not sure how much the 351C is but it must be in excess of 700lbs if you include headers to Air cleaner.
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