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Generation III Internal Engine 1997-2006 LS1 | LS6
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milled ls6 heads what size pushrods?

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Old Feb 17, 2011 | 09:15 PM
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marlboro racer's Avatar
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Default milled ls6 heads what size pushrods?
I bought a car that has some ls6 heads and they are milled. He doesn't know how much. The paperwork doesn't say but it is using a .40 cometic head gaskets. Should the pushrods be shorter like 7.35 or are the 7.4's fine? I'm about to install an MS4. The motor has JE pistons but he's not sure if it has valve reliefs. If they do I assume the MS4 and milled 243's will be fine. If not I will throw on some stock 243's with 7.4's. Everything sound good?
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Old Feb 17, 2011 | 10:05 PM
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Buy a pushrod length checker. TSP sells them. Why guess when you can know for sure...
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Old Feb 17, 2011 | 10:11 PM
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exactly thats what one is for bro...... No one can answer your question....
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Old Feb 17, 2011 | 10:11 PM
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Don't you think you should check piston to valve clearance 1st ?

Or did you already clear it with TSpeed
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Old Feb 17, 2011 | 10:28 PM
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Measure....if you do it any other way its dumb.
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Old Feb 17, 2011 | 10:30 PM
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Borrow a boroscope and look if you have reliefs first. Measure p-rod length and then PTV clearance.
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