evans280z Posted August 31, 2006 Share Posted August 31, 2006 im getting my head done and wondering is their any big difference between a 3 angle and 5 angle valve job Quote Link to comment Share on other sites More sharing options...
JSM Posted September 1, 2006 Share Posted September 1, 2006 2 degrees! Properly done, the more 'angles' that are cut into the valve seating surface, the better they flow - it eases the flow around the perimeter of the valve. 3 angle or 5 angle should seal equally well. Quote Link to comment Share on other sites More sharing options...
evans280z Posted September 1, 2006 Author Share Posted September 1, 2006 thanks Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted September 3, 2006 Administrators Share Posted September 3, 2006 JSM pretty much covered it. Any more angles than 3 is pretty much splitting hairs. Since every single head that goes through our shop gets multi angle seat work, we will only cut 3 angles if the customer request this, otherwise we try and give them 5 angles but sometimes the intake or exhaust seat may only get 4 angles, other variables at work for different applications dictates that. In the near future we will be offering radius seat work which offers the ideal seat geometry, but again, n a mild street engine on the dyno, the power gains will be negligible at best. The multi angle seat work is just one of those “attention to detail†items that most high end shops cover to give their customers every last bit of performance. Quote Link to comment Share on other sites More sharing options...
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