mustangmike01

Hey guys, In two weeks my 03 cobra motor come in. This is what I was thing to do with mods, CAI, long tubo headers, X pipes, Whipple or a KB. I'm looking to make 600rwhp. Do I need to change the pistons, cams, valve sprinds, port the heads????

Thanks, Mike

beabout

1. Everything in the block is solid for your horsepower needs.
2. Check the heads to see if less than nine spark plug threads. If they are then you should consider updating them to latest release.
3. Long tube headers are not necessary and are a pain in the butt.
4. Before installing engine do the cooling modification that helps circulation of coolent in the drivers side head.


Good luck with your project....

LukeLink

I have an 04 cobra. The internals on the engine you bought are good for a good bit more than what you are looking to achieve. I second the opinion on the headers. My friend has an 03 cobra. He installed long tubes on it, took him all day, and when he dynoed it, a gain of about 5 horsepower is all it gave him. Enjoy the engine, it's a beast.

mustangmike01

I know the long tubes headers are pain but if the motor is on a lift, I would just change them. Good to know they only give 5hp.

The guy that I'm buying the motor from made a video for me. He said the bearing in the s/c is shot, but it was fine before the crash. Check out the vidoe and tell me what you hear? Is it the bearing making the noise. It has a stage 3 port too.

http://videos.streetfire.net/player.aspx?f...E3-86A4891ECA0D

Thanks, Mike

timbo3282

Can someone point me to the cooling mod referred to in #4?

Thanks!

97slobra

There is no way longtubes give you 5 extra rwhp, especially on a supercharged car.

Billymac76

where did you find that engine?? any site?? im looking for a cobra engine

dun4791

www.ldcchicago.com

Kafn8td

LT's are worth it, especially at 600 HP. They will move a lot of heat away from those heads.