4.0l headers swap - Ranger-Forums - The Ultimate Ford Ranger Resource

2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 10-18-2016
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Join Date: Nov 2015
Location: rocksprings
Posts: 173
4.0l headers swap

i was looking for some bigger headers for my 3.0l and instead of spending $200 on brand new ones i thought i could swap some from a 4.0l since they might be bigger because they are from a bigger engine
Would this work and mount up to my stock cat system?
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Old 10-20-2016
vista4.0's Avatar
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Join Date: Jan 2009
Location: Beaver Falls, PA
Posts: 2,813
No. Cant do that.

The exhaust manifolds on these trucks flow very well. You wont see any gains unless you are planning on forced induction.
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