Port match exhaust to head

[Notched]

Is it common, or necessary to port match exhaust to the head?

My intakes are matched to the heads by my head builder.
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Phillip Bradfield

Current stock: '57 Panel Bus, '63 Rat Notch, '64 Baja, '66 Variant, '67 Convertible Ghia, '68 Squareback, '69 Squareback, '69 Fastback

Southern Oregon VW Club -- http://www.sovw.org

Oregon VW Forum -- http://www.oregonvw.org

[madmike]

I usally check for shitty welds and smooth them out but headers are usally bigger than the head port so no need to match,Madmike
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'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[Bruce]

Do not open up the exh port of the head. You will make a LOT less hp if you do. The stock port, smoothed but not opened up can flow enough to make over 200 hp. It is NOT a restriction.
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[57 Rag]

Like Bruce said. You actually want the step from the head to the exhaust. If I remember correctly, it helps with the back pressure for the bottom end. Someone else can chime in on this but I know you want to just polish it and not open it up too much.
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57 Ragtop
84x94 86C
IDAs