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pushrods

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Old Apr 22, 2009 | 12:37 AM
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Default pushrods

besides a measuring tool, is there a way to tell how long of a pushrod you need?

my setup has .599/.599 lift and 59cc heads.
can you tell how long they need to be just from that?
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Old Apr 22, 2009 | 11:11 AM
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you measure the base circle of the cam my friend.

stock PR = 7.400" compare new cam BC to stock cam BC, and go from there.... or if already installed, get a PR measuring tool (adjustable PR) for about $15
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Old Apr 22, 2009 | 06:22 PM
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I think stock pushrods are 7.385" or am I mistaken??
can someone chime in and confirm or deny this?
but you will need to measure the base circle of the cam to figure out what rods you need, or call whoever is grinding it.
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Old Apr 22, 2009 | 06:25 PM
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Originally Posted by sonoma43
I think stock pushrods are 7.385" or am I mistaken??
can someone chime in and confirm or deny this?
but you will need to measure the base circle of the cam to figure out what rods you need, or call whoever is grinding it.
That is correct on stock length... If the cam is the same BC as stock you will need shorter then stock push rods.. Get you a tool
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Old Apr 22, 2009 | 06:39 PM
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Thanks John appreciate it!
Why run smaller PR's if the aftermarket cam is the same BC? I used to know all of this crap but that was on SBC and I have forgotten most of it now
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Old Apr 22, 2009 | 07:01 PM
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Originally Posted by sonoma43
I used to know all of this crap
LMAO I forget **** i read yesterday... Lord give me strength
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Old Apr 22, 2009 | 07:43 PM
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also need to take into account how much the heads are milled.
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Old Apr 22, 2009 | 08:01 PM
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Originally Posted by Mangled03gmc
LMAO I forget **** i read yesterday... Lord give me strength
yea, it's gettin that way
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