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Old 06-29-2005, 07:55 PM   #3
TheJeanyus
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Join Date: Dec 2004
Location: Huntsville, AL
Posts: 14,774
Re: what year 4.6s...

Obviously any of the 4Vs should respond better to boost. The '03 Cobra motor is a great longblock, but unless someone gives you one or you steal one from a warehouse, there are better alternatives for what it costs.

I think a '99/'01 aluminum block with '03/'04 heads, aftermarket cams or '03/'04 cams, forged internals, and a '99/'01 intake would make a great forced induction motor. But if we're talking about stock motors, I'd say either an '01 Cobra or '03/'04 Mach 1 motor would be the best bet.

As for 2Vs, I've heard a ported set of '96-'98 heads will actually outflow a set of ported PI heads. I'd replace the intake on either motor just because that plastic intake makes me nervous. The PI motor has much better cams though.

I think the 3V is going to be a great forced induction motor. Supposed to make torque like a 2V on the low end and scream on the top end like a 4V, and I would think that would only multiply once you add boost.
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