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joshua.mathews

Ported Heads

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Nice work.

 

I am currently rebuilding mine for track use, using a ported 3k head. Has been ported to approx 33mm inlets

 

How much compression are you looking at running?

Edited by Had_ke30

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Have a read of Thomas thread ! I ported the head for him , to get the most out of your port job make sure you put bigger valves in and cam to suit as well as carburation / exhaust and the list goes on ???? . Thomas head has double valve springs at around 105 pound on the seat which once warmed up should be around 95/100 on the seat , compression ratio is just under 12-1

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Valve size I can't remember. I bought the head already built and then sunk a heap of more money into it. Will chase emails and measure for you. I remember they were at least 1mm o/s

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sorry late to this little chat..... I've done a little "K" engine port work..... very early on.

 

 

 

anyone test their work on a flowbench?? unfortunately my bench was not available when I did my K porting....

Edited by oldeskewltoy

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The inlet ports on my head are 35mm

This head is goin on a 5k with flat tops

It will have 10.2.1 comp

 

Is the 35mm inlet diameter at the entrance or all the way through?

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