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How Much Can the 03-04 Cobra's Really Handle!!!!

This is a discussion on How Much Can the 03-04 Cobra's Really Handle!!!! within the 4.6 Tech forums, part of the 4.6L Mustang category; I am looking at buying a 03 cobra and I was wondering, how much the block can handle hp. Because ...

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Old 05-22-06, 10:58 AM
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How Much Can the 03-04 Cobra's Really Handle!!!!
I am looking at buying a 03 cobra and I was wondering, how much the block can handle hp. Because I know they are stock 390hp I was wondering if anyone has there cobra's way above that cause I would like to get to around 500-600hp and I was wondering if thats possible on this block.
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Old 05-22-06, 11:03 AM
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Yeah its possible. Just go look at the SVT forums and see how much people are making in their sigs etc. I believe (i think...) there have been people to make 800~1000hp with twin turbo systems on a stock 03/04 cobra longblock.
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Old 05-22-06, 11:15 AM
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2 kenne bell blowzillas making 850 without issues.

Torinalth
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Old 05-22-06, 12:25 PM
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Bottom end is forged from the factory, pretty damn durable.

Its all in the tune with forced induction.
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Old 05-22-06, 12:25 PM
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HOLY RUN ON SENTENCE BATMAN!!!

yes the block itself can handle tons more power, but from what I understand the internals are limited to around 650? not sure though. I am quite sure it would handle what your talking about though
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Old 05-22-06, 02:29 PM
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500-600 hp seems pretty common on those things...the bottom end in those motors is easily built for it. Those cobras are monsters!
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Old 05-22-06, 03:50 PM
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there are a lot of people that have gotten awesome numbers on the stock blocks, but there are a lot that have had to rebuild as well, I was only at 470 rwhp and 500 rwtq when my 03 cobra engine needed to be rebuilt, tune done by a very reputable tuner. You read about a lot of people running insane numbers on the stock 2v blocks also. The pistons and the hot spot on the driver's side head at the 7 and 8 pistons are the weak areas of the stock cobra blocks.
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Old 05-22-06, 06:07 PM
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a good friend of mine is putting down 740rwhp on his 04 mystichrome and it is a daily driver with no issues on the engine side of things.
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Old 05-22-06, 09:39 PM
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The 03-04 Cobra makes some insane numbers.I have seen KB Cobra's
making 800-900 rwhp and twin turbo Cobra's making 900-1000 rwhp
it's absolutely crazy if you ask me!
Last edited by Pennywise2; 05-22-06 at 09:40 PM.
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Old 05-22-06, 11:54 PM
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Theres a guy I know that has somewhere in the low-mid 500 range on his Cobra, stock bottom end.
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