head porting

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tigeralpine
Posts: 1
Joined: Thu Aug 25, 2011 10:12 pm
Club Member: Yes
Car Model: Hillman Imp

head porting

Post by tigeralpine »

Looking for info and pics on porting my Imp sport head?
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Darkspeed
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Joined: Wed May 26, 2010 8:51 pm
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Car Model: G15
Location: Shropshire
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Re: head porting

Post by Darkspeed »

There are some details in the old Vizard Speedsport book - Theory and practice of cylinder head modification.

Andrew
Build a man a fire and he will be warm for a day. Set a man on fire and he will be warm for the rest of his life!
cov_climax
Posts: 200
Joined: Thu Jan 29, 2004 10:54 pm
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Car Model: Super
Location: Midlands

Re: head porting

Post by cov_climax »

or try the Tim Millington book on hillman imps, has fully dimensioned cross sections

or if you like real photographic cross-sections:
http://www.revilo89.freeserve.co.uk/Cyl ... vilo89.htm
basil imp
Posts: 92
Joined: Sun Feb 18, 2007 5:57 pm
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Car Model: imp super 1975, imp super 1973, imp super 1971
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Re: head porting

Post by basil imp »

I have a picture of a cross section sport head on my phone. Will try and load it up if I remeber. When I asked about porting in the members only section I didn't get a huge response. All I have done is bored through the exhaust ports at 22mm and 25mm down the inlet ports, the aim was then to remove guides and blend it in.
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