head porting

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head porting

Postby tigeralpine » Thu Dec 22, 2011 9:12 pm

Looking for info and pics on porting my Imp sport head?
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Re: head porting

Postby Darkspeed » Thu Dec 22, 2011 9:33 pm

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

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!
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Re: head porting

Postby cov_climax » Thu Dec 22, 2011 9:54 pm

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
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Re: head porting

Postby basil imp » Sun Dec 25, 2011 4:29 pm

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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