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Author Topic:   Bore size
posted November 12, 2004 11:50 AM
Got thinking about different motor configurations and curious to what effect a motor with a 30 over bore had vers a 60 over bore. I would think it would not make that much difference but if using say a set of 461 heads with 194/160 valves and cut -10. would these heads run better with a 30 over and maybe bigger valves would be better for the 60 over. See where I'm going. ANY THOUGHTS?

posted November 12, 2004 03:51 PM
the bigger the bore the better the valves breath. a bigger bore will unshroud the valves more. but you hafta unshroud the chambers as well.