head and valvetrain geometry questions
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Joined: Nov 2001
Posts: 3,515
From: Kansas
head and valvetrain geometry questions
im sure most of you know the answer to this pretty simple question so here goes...
what exactly is measured to determine if a head is 18* as opposed to 23*? is it the valve angle in relationship to the combustion chamber or is it the mating surface angle of the intake/head in relationship to the combustion chamber?
im just trying to visualize what makes an 18* so much better than a 23* head... im assuming theres a shorter or more direct path to the combustion chamber in an 18* head but im only guessing.
what exactly is measured to determine if a head is 18* as opposed to 23*? is it the valve angle in relationship to the combustion chamber or is it the mating surface angle of the intake/head in relationship to the combustion chamber?
im just trying to visualize what makes an 18* so much better than a 23* head... im assuming theres a shorter or more direct path to the combustion chamber in an 18* head but im only guessing.
Advanced Tech Moderator
Joined: Aug 2001
Posts: 2,262
From: Nashville
Valve angle in relation to the piston.
http://web.camaross.com/forums/showt...hreadid=138238
http://web.camaross.com/forums/showt...hreadid=138238
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