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Big valves

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Monaroman68
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2010/07/13 19:55:13 (permalink)
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Big valves

Hey guys looking for a set of big valves to suit a 2lt with a cam with very small base circle and i'm told they need to be longer to get geometry wright any idea's on what i need?
Dave
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    Avon
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    RE: Big valves 2010/07/13 20:26:51 (permalink)
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    Burtonpower is prob the easiest option
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    martymexico
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    RE: Big valves 2010/07/13 21:19:56 (permalink)
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    A cam with a small base circle...sounds like a cam thats been reground a few times, not recomended!! Must be a V8 thing[B)] You need a billet with a std base circle and bigger peaks with a wide duration (300-310deg). Valves should be Stainless steel waisted stem, 45.5 inlet, 38.5 exh. Springs can still be single coil(VS9, Burton catalog).
    #3

    Monaroman68
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    RE: Big valves 2010/07/13 21:54:04 (permalink)
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    quote:
    Originally posted by martymexico

    A cam with a small base circle...sounds like a cam thats been reground a few times, not recomended!! Must be a V8 thing[B)] You need a billet with a std base circle and bigger peaks with a wide duration (300-310deg). Valves should be Stainless steel waisted stem, 45.5 inlet, 38.5 exh. Springs can still be single coil(VS9, Burton catalog).


    Martymexico its not a reground cam is a billet from esslinger for dirt oval racing and has 320 deg duration 530th lift. The valves in the head got damaged last meeting with a broken timing belt and smacked the valves pretty bad.They are the same size as you quaoted above but are 113mm long intake and 12.5mm exhaust. Apparently the small base circle is there for rapid rampup on the cam and is spose to be something like 8 thou ramp per 1 deg.
    #4
    martymexico
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    RE: Big valves 2010/07/13 22:28:59 (permalink)
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    Thats as big as the cam i had in my Pinto a few yrs ago, billet from Kent Cams UK, prolly too big for road as i found out ! Esslinger make some proper components, have you asked them for valves?
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    Monaroman68
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    RE: Big valves 2010/07/19 19:36:54 (permalink)
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    Got some come Marty from esslinger thanks for your help guys
    #6

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