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New Edge Cobras
Need to decide on head work for boosted motor
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<blockquote data-quote="fs308" data-source="post: 13246602" data-attributes="member: 68744"><p>from na svt on another thread</p><p></p><p>From na svt </p><p>The absolute best thing you can do to your heads is install 38mm intake valves and open the seats up to 90% of the valve diameter, 1.496. At a minumum open up the seats to 90% of the stock valve diameter (if using stock valves) which is 1.45669". These heads suffer from undersize seats and by opening them up you will get significantly more flow.</p><p></p><p>As for the combustion chamber, enlarge it to the size of the BB head gasket. This will unshroud the valves (a little) and also remove any sharp edges and pockets that inhibit flame travel and lead to detonation.</p></blockquote><p></p>
[QUOTE="fs308, post: 13246602, member: 68744"] from na svt on another thread From na svt The absolute best thing you can do to your heads is install 38mm intake valves and open the seats up to 90% of the valve diameter, 1.496. At a minumum open up the seats to 90% of the stock valve diameter (if using stock valves) which is 1.45669". These heads suffer from undersize seats and by opening them up you will get significantly more flow. As for the combustion chamber, enlarge it to the size of the BB head gasket. This will unshroud the valves (a little) and also remove any sharp edges and pockets that inhibit flame travel and lead to detonation. [/QUOTE]
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Need to decide on head work for boosted motor
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