hey guys, i was thinking about what i could do for cheap by myself. i know i can get a spare set of buick heads for next to nothing from a junkyard. but i realize i know nothing about porting and the 'rules' to doing it and such.. so what i wanted to ask was if someone could tell me sort of the 'guidelines' as to what I could do at home with a dremel and a flapper wheel without messing anything up. like what is safe to smooth out, open up, and what i need to stay away from and leave to a professional. thanks guys!
what can I safely port?
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There is a great book out there called "How To Build, Modify and Power Tune Cylinder Heads" by Peter Burgess and David Gollan. ISBN 1-874105-82-0.
It covers theory and application from the ground up. There's even a complete chapter on how to build your own flow bench for the DIY'er including the math and proper use of the bench. The book also has lots of diagrams, pictures, and descriptions of the methods, tools used, and work being done.
I used it to mangle a set of SBC heads before doing a set for real. Learned alot by having the book right next to me while doing the grinding. Kind of fun when you can say "Oh, so THAT'S what he's talking about!"
Good luck
It covers theory and application from the ground up. There's even a complete chapter on how to build your own flow bench for the DIY'er including the math and proper use of the bench. The book also has lots of diagrams, pictures, and descriptions of the methods, tools used, and work being done.
I used it to mangle a set of SBC heads before doing a set for real. Learned alot by having the book right next to me while doing the grinding. Kind of fun when you can say "Oh, so THAT'S what he's talking about!"
Good luck
Whatever you do, unless you have a clue, don't "open up" anything... going at it blindly will more than likely do nothing but ruin them as you need a balance between CFM & velocity. And unless you have access to a flow bench, or build a DIY flow bench as Brooks suggested, you will have no idea whether one port if flowing significantly more or less than another.
For a simple DIY, generally clean things up and blend in a match up to the exhaust & intake manifold ports. Smooth is good, but "mirror" finishes are genereally unnecessary (though they look cool!!)
For a simple DIY, generally clean things up and blend in a match up to the exhaust & intake manifold ports. Smooth is good, but "mirror" finishes are genereally unnecessary (though they look cool!!)
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