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Old 07-13-2012, 07:43 AM   #1
shredder
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Default SBF ROCKER ARM RATIO`S

Hey guys just got my heads back from SPEIER RACING HEADS and
%&##$ WOW they look fantastic ..Brodix trk1 225ccrunner
2.08\1.60 flowed 331@800 int. 240 exh. i have a solid roller from before i had the head work done by Chad. it has 656\640 @ valve
after lash. w\1.6ratio rockers.
question is what ratio rocker can i run with out having problems i have plenty of piston to valve clearance. also if i change the rocker arm ratio do i have to change my pushrods also
thanks for any input or advise .. Dave
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Old 07-13-2012, 08:09 AM   #2
2ton
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Default Re: SBF ROCKER ARM RATIO`S

1.7 ratio readily available, others can be built. Pushrods may need changed, check 'em. Pay attention to sweep over tip and interference between rocker arm and rocker arm jam nut.
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Old 07-13-2012, 10:18 AM   #3
shredder
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Default Re: SBF ROCKER ARM RATIO`S

Oh ya by the way it's. A NOS set up thanks for the suggestions
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Old 07-13-2012, 06:04 PM   #4
Wagon Train
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Default Re: SBF ROCKER ARM RATIO`S

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Originally Posted by 2ton View Post
1.7 ratio readily available, others can be built. Pushrods may need changed, check 'em. Pay attention to sweep over tip and interference between rocker arm and rocker arm jam nut.
Also pushrod to body. I just put 1.7 Comps Ultra series on mine, the pushron hit rocker just before max lift. Also check pushrod to guide plate before and after max lift.
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Old 07-13-2012, 10:07 PM   #5
shredder
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Default Re: SBF ROCKER ARM RATIO`S

Thanks for the input i will do some more checking !!!!
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Old 07-14-2012, 12:31 AM   #6
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Default Re: SBF ROCKER ARM RATIO`S

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Thanks for the input i will do some more checking !!!!
Quit messing with rocker arms,and check your private messages.

Later Mark.
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