Generation III Internal Engine 1997-2006 LS1 | LS6
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317 6.0 heads

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Old 01-23-2007, 01:43 PM
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Default 317 6.0 heads

do you have to mill 317 6.0 heads to fit on ls1? or just bolt up.
Old 01-23-2007, 02:19 PM
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They will bolt up, but you'll loose power due to having less compression. Milling them will bring it back, and add power depending on how far you go.
Old 01-23-2007, 06:10 PM
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its for a boosted setup(sts)
Old 01-23-2007, 10:14 PM
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8 sec potential, 12 sec slip
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Just make sure you have 6.0 gaskets, and bolt them on and go
Old 01-23-2007, 10:15 PM
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wish i could find some. they would help me out alot. i think my seller fell through
Old 01-26-2007, 06:59 AM
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thank guys
Old 01-26-2007, 08:54 AM
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eBay has them on there all the time. I'd look there.




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