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317's or 806's??

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Old 04-08-2009, 01:26 PM
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Default 317's or 806's??

Well, my 6.0 lq9 will be here on monday. And I about to make an order with TSP for a ms3 and some other goodies.

I have a blown 98 ls1 with 806's. The lq9 is coming with 317's.

Should I use the 317's or the 806's on the new motor?
I know 317's flow better, but compression would be lower.
So I'm kinda on the fence about which ones to use.

This is just a temporary solution till i get some cash saved up for some ported 5.3's or something.

So help me out guys....
Old 04-08-2009, 04:27 PM
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crickets....
Old 04-08-2009, 04:47 PM
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why not mill the 317s since they flow a hell of allot better than the 806s.
Old 04-09-2009, 07:13 AM
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If I mill them, I'm afraid they will have ptv clearance issues...
Old 04-09-2009, 07:45 AM
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put the ms3 in and check ptv, it will let you know how much you can take off the heads. even if you left them stock i would stick the 317 heads on because they flow allot better. you will still have good compression because the lq9 has flat top pistons.
Old 04-09-2009, 07:46 AM
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alright...i'll do that.
Thanks.
Old 04-09-2009, 07:52 AM
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just hold off on buying pushrods till you decide what your doing and measure.




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