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What pushrods do I run with LS7 lifters

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Old Dec 7, 2010 | 06:25 PM
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Question What pushrods do I run with LS7 lifters

ls7 lifter #17122490

I need to know what pushrods to run with these lifters. I need to make sure because I'm finishing my build and need to make sure this thing goes right. Help Please?
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Old Dec 7, 2010 | 07:25 PM
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If you are asking about pushrod length, the standard procedure is to take measurements using an adjustable (measurement) pushrod. What components are you changing?
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Old Dec 7, 2010 | 08:36 PM
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LS7 lifters are a factory replacement, you should be able to run the same length as you would if you kept the stock ls1 lifters.
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Old Dec 7, 2010 | 08:38 PM
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I went from a 7.4 to a 7.350 after I installed LS7 lifters, but they are all different depending on cam.
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Old Dec 8, 2010 | 12:07 AM
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Measure. No ifs, ands, or butts about it dood.
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Old Dec 8, 2010 | 09:41 AM
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Originally Posted by Darkman
If you are asking about pushrod length, the standard procedure is to take measurements using an adjustable (measurement) pushrod. What components are you changing?
I have an ms4 cam I changed to the 675. lift springs from texas speed and i'm running stock rockers. I didn't mill the heads or deck surface so that is the stock deck height.
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Old Dec 8, 2010 | 09:54 AM
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Typically we will have to go with a little shorter pushrod with those lifters but like mentioned earlier I would definately measure it out to be sure. You can get the comp pushrod length checkers for $20, saves a lot of guessing and headaches in my opinion.
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Old Dec 8, 2010 | 10:47 AM
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Originally Posted by BStowers023
LS7 lifters are a factory replacement, you should be able to run the same length as you would if you kept the stock ls1 lifters.
Factory replacement, yes...but they do have a bit higher cup height than the older LS1/2 lifters, so they require a different length pushrod.
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Old Dec 9, 2010 | 07:04 PM
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any info on the length with those and a ls6 cam?
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