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Old 05-10-2009, 01:12 PM
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Default boring question

hey guys just wondering i soon gonna be starting my lsvtec turbo build and just wondering about boring the block out i been reading up and alot of people are running 81.5mm bore i was just wondering if a 82mm bore will be just as reliable as 81.5mm the power range i like be around is 300-360whp with full forged rods and pistons , block gaurd and arp head studs.
thanks guys
Old 05-10-2009, 01:18 PM
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Default Re: boring question

if the block is still stock, if it were me, I would probably save the extra .5mm .... if you want to freshen it up to 81.5mm it then leaves you an extra .5mm in case of other rebuild...

besides, for a FI app, that extra displacement isn't going to make a substantial difference....

HT edit: get rid of the block gaurd
Old 05-10-2009, 01:38 PM
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Default Re: boring question

82mm bore is not gonna work on stock sleeves.
Old 05-10-2009, 08:01 PM
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Default Re: boring question

81.5 is all I would do. I agree you shouldn't run the block guard
Old 05-10-2009, 10:02 PM
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Default Re: boring question

i would keep it 81.5mm
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