390 pushrod lengths
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Tuned
Joined: Mar 2004
Posts: 412
Likes: 3
390 pushrod lengths
How are the factory style push rod lengths measured, overall or gauge?
I believe mine was supposed to have 9.59" push rods factory, but don't know the measuring method for them.
I'm trying to figure out what I need with a length checker but am trying to figure out if one of the factory lengths will be enough shorter after my rebuild instead of spending a bunch on custom length. If they are measured differently it is possible that I can add a bit to my measurement.
I believe mine was supposed to have 9.59" push rods factory, but don't know the measuring method for them.
I'm trying to figure out what I need with a length checker but am trying to figure out if one of the factory lengths will be enough shorter after my rebuild instead of spending a bunch on custom length. If they are measured differently it is possible that I can add a bit to my measurement.
Laughing Gas
Joined: Jul 2010
Posts: 1,133
Likes: 128
From: Chico, Ca.
Assuming you have hydraulic lifters with non-adjustable rockers, you have to collapse the lifters before checking the length. I don't have the measurement range in front of me, but I believe that I set the gap to .100. Mine were different lengths, so measure each one.
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