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Pushrods?

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Old 02-13-2011, 10:12 AM
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Default Pushrods?

I am putting new LS6 heads on a 99 LS1 short, with the longer valves do I need a shorter pushrod? (what size). I will be using a TSP cam not the LS6 cam with the offset lobes.
Old 02-13-2011, 05:07 PM
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You need to measure to be absolutely sure, All anyone can give you is a guess, You dont mention whether or not these heads have been surfaced any, that would make a difference., the cam will not determine what pushrods you run, lifters and heads will.
A pushrod measuring tool will let you know exactly what pushrods to use.
I have not heard of these valves being longer, it really would not make a difference, they will still only open off their seats the amount of lift the cam allows..
Old 02-13-2011, 09:44 PM
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Originally Posted by RARON455
You need to measure to be absolutely sure, All anyone can give you is a guess, You dont mention whether or not these heads have been surfaced any, that would make a difference., the cam will not determine what pushrods you run, lifters and heads will.
A pushrod measuring tool will let you know exactly what pushrods to use.
I have not heard of these valves being longer, it really would not make a difference, they will still only open off their seats the amount of lift the cam allows..
You heard right and it does make a diference.
Old 02-14-2011, 02:45 AM
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Without a doubt go to jegs and buy the $12 pushrod length checker AFTER everything is put together. It is the ONLY way to really get a good measurement.

A digital caliper of some sort will be needed as well.




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