question about measuring pushrod length and ls7 lifter pre load?
02-26-2011, 05:10 PM
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question about measuring pushrod length and ls7 lifter pre load? ok guys have an ls1 block with stage 2 texas speed 243 heads.i have ls7 lifters and stock roller rockers.i tighten my push road checker,just till the tick sound went away(checking with a micrometer)im getting 7.266.trying to get an idea how much pre load i should add to this for the ls7 lifters?thanks for your help!!!
02-26-2011, 06:23 PM
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with your measurement at 7.266, I would use 7.350 pushrods. That would give you an .084 preload.
I used .080 on my last build with the same lifters and had hardly any valve-train noise.
.060 to .100 would be an acceptable range from what I've read.
I used .080 on my last build with the same lifters and had hardly any valve-train noise.
.060 to .100 would be an acceptable range from what I've read.
Last edited by Legman; 02-26-2011 at 06:33 PM.
