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Header for big block swap

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  #1  
Old 03-27-2017, 07:14 PM
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Question Header for big block swap

I want to put a 460 in my 1995 f250 with a c6 trans with cobra jet style heads. Does anyone know a header to fit that swap? Thanks in advance.
 
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Old 03-28-2017, 06:55 AM
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Old 03-28-2017, 11:42 AM
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I am try to build a 521 stroker with p51 kaase heads and they require cobra jet intake and exhaust parts. I don't think those are for cobra jets.
 
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Old 03-28-2017, 12:32 PM
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I am running a 557 with alloy heads too.
The pipes are 1.55" x 2.25" at the head.
1.875 pipes into 3" collectors.
They were the best off the shelf solution I came across after months of searching and trying 2 other sets. I am not able to legally run the fenderwell exit pipes over here like Mad dogs or L & L's.
I have taken care when porting the exhaust ports to keep them matched to the headers though.

Cheers
 
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Old 03-28-2017, 12:40 PM
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What heads are you running if you don't mind me asking?
 
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Old 03-28-2017, 12:45 PM
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Below is a quote from a customer review posted on Summit which put me onto the port size, though he used an uncoated set for a Galaxie fitment they are the same at the head face.

"I will start by saying that these WILL fit a 1968 ford galaxie or XL (if you made your own mounts and have the engine setting back a bit)....therefore they should fit 65-68 as they have the same frame. So, if you swap a 429 for the 390 these work great! These also have the CJ port opening, as the product doesn't really state that. Pros...Full length and CJ openings...Larger diameter primaries. Comes with all the hardware to install. Fit a galaxie that has had the engine swapped to the 385 series "

Doug
 
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Old 03-28-2017, 12:47 PM
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I am running Trick Flows with the raised exhaust port.
 
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