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Intake manifold question

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Old Dec 31, 2002 | 03:56 PM
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Default Intake manifold question

Is there any difference in cast iron intake manifolds? I have been offered one from a 1969 350/350. Mine is a 350/270. Not that I would chance mine, just woundering if any difference in power.

Thanks
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Old Dec 31, 2002 | 04:06 PM
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Default Re: Intake manifold question (TonyQT)

I'm fairly confident the intakes are the same, and that compression and other variables were changed to gain the extra output on the optional 350HP engine.

Anyone else know for sure?
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Old Dec 31, 2002 | 04:44 PM
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Default Re: Intake manifold question (TonyQT)

Apparently not. My reference books show the following manifolds for 1969:

3927184 350, cast-iron
3947801 427/390, aluminum
3937795 427/400, aluminum
3937797 427/435, aluminum
3933198 L88 427/430 and ZL1 427/430, aluminum
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Old Dec 31, 2002 | 05:08 PM
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Default Re: Intake manifold question (TonyQT)

TonyQT,
In 69 both the 300 and 350 hp engines have the same intake; 3927184.
In 70 they followed the same pattern 300 and 350 hp used intake; 3965577.
Ed
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