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  #1  
Old 06-27-2003, 12:13 PM
rwilde rwilde is offline
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Default Magnum pushrod length

Does anyone know the pushrod length for a magnum engine. I have two set of pushrods one set measures 6.902" and the other 6.780" Which is correct?

The cam I bought has a smaller than stock base circle, and I am having trouble with pushrods being too short. The Mopar performance catalogue has some pushrod that are 0.065" longer than stock ones, but what is a stock length?

Anyone had experience with this? I know the easy fix would be adjustable rockers, but this is a "claimer" engine and the adjustable rockers would be way too expensive.
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Old 06-27-2003, 05:22 PM
BillyBob BillyBob is offline
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6.915-6.935
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Old 06-27-2003, 06:49 PM
340duster1 340duster1 is offline
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Thanks Billy, sorry my name is different as I wasn't logged in correctly when I started the thread. Not to start up the lifter preload question, but what should the preload be on the hyd roller. I don't have the number with me now, but hughes recomends a much higher number than hyd flat tappets. I post the hughes number later.
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Old 06-27-2003, 08:13 PM
BillyBob BillyBob is offline
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I don't know, but I would "guess" somewhere between .020 & .050

Hopefully, someone with more knowledge on this will chime in........
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Old 06-29-2003, 12:48 AM
340duster1 340duster1 is offline
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On a hydraulic roller only Hughes recommends 0.85". Anyone know why?
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