Author Topic: Correct method for getting push rod length right  (Read 2176 times)

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Offline rceagle1a

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Correct method for getting push rod length right
« on: April 23, 2013, 06:16:05 PM »
What is the easiest, correct way to figure out what length my push rods need to be? I've never done this and don't want to ruin a good set of chromo push rods.


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Offline Jeff McKelroy #55A

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Re: Correct method for getting push rod length right
« Reply #1 on: April 23, 2013, 07:37:09 PM »
A large number of variables are involved in determining the correct length pushrod for your application. Pushrod length is affected by any of the following:
•Block deck height
•Head deck height
•Head stud boss height
•Rocker arm brand/design
•Cam base circle size
•Lifter design/brand/pushrod seat height
•Valve stem length

Assuming you are spending the money for durability, use these tools to find the correct length for appropriate geometry:

http://www.compperformancegroupstores.com/store/merchant.mvc?Store_Code=CC&Screen=PROD&Product_Code=7900&Category_Code=PSHRDTL

Easiest? Did you mill the head?  Remove an equivalent length.  In other words, if you milled .100" from the head/block, remove that length from the pushrod.  More options other than Crane exist for cut-to-length push rods.

Jeff McKelroy
Tulsa, OK 74128


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Offline bountyhunter

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Re: Correct method for getting push rod length right
« Reply #2 on: May 21, 2013, 09:04:48 AM »


 

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