When taking push rod length do I add an amount for lifter preload on an LS?

2003 CHEVROLET SILVERADO
256,900 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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DOG767
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I’m measuring push rods for my 5.3 that I just rebuilt. The heads have been shaved. I noticed that exhaust and intake push rods are different sizes. My question is, when taking push rod length do I add an amount for lifter preload? Because I’ve seen videos of people just measuring without adding for lifter pre load while some add the amount of preload for lifters added. I have a set of Elgin ls7 lifter I was going to add to measurement of 0.050 if that is correct procedure.

Also, when I measure do I measure from tip to tip, or do I measure from just below the that sits in cup of lifter and rocker?
Nov 15, 2024 at 12:56 PM
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STRAILER
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I would measure the pushrods from tip to tip. Also, there is a method of measuring the push rods as it pertains to the travel of the rocker, so you get the same movement before and after the centerline of the duration. Yes, I would account for the lifter preload as well. Are you a performance engine builder?
Nov 16, 2024 at 10:03 AM
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