Generation III Internal Engine 1997-2006 LS1 | LS6
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p to v clearance

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Old 02-26-2005, 12:07 PM
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Default p to v clearance

would there be any issues with 6.0 heads with 2.055/1.57,stock shortblock.

Last edited by Moparnos; 04-10-2005 at 12:27 PM.
Old 02-26-2005, 05:43 PM
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anybody???? really need to know
Old 02-26-2005, 05:49 PM
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Im not 100% sure because of the 6.0 heads but I think you might have to flycut your pistons. Maybe someone with more knowlegde will have something to say.
Old 02-27-2005, 12:46 PM
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i know it would clear if i had the 2.02 valve but i'm not sure with the 2.055
Old 02-27-2005, 01:08 PM
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I was told there can be up to a .010 variance in piston to deck clearance with the LS1 (mine ended up being .005 out of the hole). I'd err on the side of caution and check PTV with your new head gaskets. The consequences of being wrong are too catastrophic to take a chance. MHO
Old 02-27-2005, 01:11 PM
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"Use a Dial Indicator Luke"
Old 02-27-2005, 07:06 PM
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damn looks like i have to flycut. where can i get that tool from?
Old 02-27-2005, 07:09 PM
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Originally Posted by Moparnos
damn looks like i have to flycut. where can i get that tool from?
L G Motorsports rents out the tool for $100.I think it comes with a mock up head and cutting tool.
Old 02-27-2005, 09:36 PM
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Originally Posted by Moparnos
damn looks like i have to flycut. where can i get that tool from?
The 6.0 heads have more p to v than stock ls1 heads so you should be fine, but it also depends what lsa the cam is. My cam is bigger then that and it fits fine with stock ls1 heads, and i'm getting some 6.0 heads and mine had about 30 on intake and 60 on exhaust for p to v. If you due have to use the tool to cut valve relief just be very carfull not to got any metal in the cylinders. good luck




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