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317 Milling spec

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Old 10-07-2009, 10:05 AM
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Default 317 Milling spec
having my heads done by a local machine shop, i want to take my chambers from 70cc to 65cc, anyone have an idea of how much needs to be taken off for that? and will the intake still mate up like it should?
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Old 10-07-2009, 01:35 PM
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as long as u dont go more than .030.
going more than .030 may cause intake to heads aligment issues. and then intake will need to be machined also for correct fit
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Old 10-07-2009, 06:11 PM
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where are you getting the heads done at? pm me if it's top secret . i've read on here that 1cc is roughly .004 off the deck
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Old 10-07-2009, 06:51 PM
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Thanks NemeSS,

and hey man hows the car been? im getting my heads done up here at school, got to love engine repair/machining class
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Old 10-08-2009, 07:27 AM
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Originally Posted by BlueStreak362
Thanks NemeSS,

and hey man hows the car been? im getting my heads done up here at school, got to love engine repair/machining class
car is good man. how's your build going? i'm in the process of doing a similar h/c on a fresh lq9. wanna give any details on your build?
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Old 10-08-2009, 10:26 AM
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yeah not a problem, ill PM ya
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Old 10-08-2009, 09:59 PM
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.006-.007" is 1cc
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Old 10-08-2009, 10:03 PM
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Originally Posted by Bo White
.006-.007" is 1cc
How much does that increase compression by... .1 ????????
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Old 10-10-2009, 03:05 AM
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Its a rule of thumb kinda figure. If ya mill the cylinder .024" the chamber will be 4-5cc smaller than before
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Old 10-10-2009, 07:19 AM
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Arent 317s 72cc stock?????And if so you would have to mill them 2 much to get a 65cc.I donno im just curious?
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Old 10-24-2009, 09:22 AM
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Originally Posted by frazierboy98
Arent 317s 72cc stock?????And if so you would have to mill them 2 much to get a 65cc.I donno im just curious?

i need to know the same answer .. have a set of 317 .. not sure if i can use the heads shaved down .025 and use a .654/.609 cam ..thanks
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Old 01-05-2010, 08:03 PM
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Originally Posted by Dickie-311
i need to know the same answer .. have a set of 317 .. not sure if i can use the heads shaved down .025 and use a .654/.609 cam ..thanks
I want to know too!
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Old 01-07-2010, 04:07 AM
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shoot 93ls7z a pm he does all my machine work..very strait forward guy
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