Difference between 383 HP Intakes 2951666, 2951666-1, 2951666-2

• Sep 7, 2020

• #1

moparnorth

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What the difference between factory 383 HP Intakes 2951666, 2951666-1, 2951666-2 for 1970 Coronet. Thanks

 

• Sep 7, 2020

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33 IMP

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If they are anything like the engine block numbers.....it just means sand casting replacement/ revisions.
Obviously, a dash two would be later in the production run.

 

• Sep 7, 2020

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moparnorth

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33 IMP said:

If they are anything like the engine block numbers.....it just means sand casting replacement/ revisions.
Obviously, a dash two would be later in the production run.

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makes sense

 

• Sep 8, 2020

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Red63440

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There are differences performance wish too....

 

• Sep 8, 2020

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Big Bad Dad

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I dont know the numbers. But many years ago I did figure out that the manifolds that were factory fitted with Holley carbs were different than those for the Carters. The choke thermostat wells are different.