C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

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Old Mar 24, 2008 | 09:33 AM
  #1  
DandyDon's Avatar
DandyDon
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Default Need Header Help

I have a 67 Pro Street roadster with a healthy 555 All Aluminum Brodix BBC. The Heads are Brodix Rectangular Port 2.25/1.88.

The car will have factory sidepipes but I'm having Spiral Turbo make a custom set of 3 or 3.5 inch sidepipes that will mate to the headers.

I had planned to buy the Hedman # 68216 headers that come off the engine and turn to the side to mate up to the sidepipes.

However, these headers are 1.75 inch primaries going into a 3 inch collector.

Since my exhaust dimension is 1.88 am I asking for trouble?

Are these headers too restrictive? Does any other header company make a larger primary style that will similarly mate up to C2 sidepipes?

Thanks-Dandy Don
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Old Mar 24, 2008 | 09:49 AM
  #2  
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ironarms
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if you call jere stahl at stahl headers he would have your answers , he is currently making a set for my 434 sbc with sidepipes
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