4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Cobra heads?

Old 05-09-2006, 12:13 PM
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bsteen81
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Default Cobra heads?

If I were to replace my stock heads with cobra heads, would there be any problems and HP gains? Also would I need to replace the intake manifold? I found some for cheap.
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Old 05-09-2006, 02:30 PM
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97targa
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Default RE: Cobra heads?

You need a whole entire swap kit.
Heads, valve covers, timing cover, upper and lower intakes, bigger T/B, atleast 24Lb injectors, Possible exhaust.
Approx. 50hp. with stock cams.....65hp with lifted cams. Alot of work.....15-20hrs....
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Old 05-09-2006, 02:31 PM
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bsteen81
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Default RE: Cobra heads?

ewwwww, ok. nevermind
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