sr20 bore taper

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ricardo.benin
Posts: 19
Joined: Tue Dec 10, 2013 10:59 pm
Car: 1991 240sx

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Hi I am doing a stock rebuild on my sr20det blacktop and my two inner bores 2 and 3 have about .0025 taper and my outer bores 1 and 4 have .0005 taper, so my question is this can I get away with the inner taper on stock pistons, BTW my fsm does not give me a max allowable taper so we're could I find it.
Thanks

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PapaSmurf2k3
Site Admin
Posts: 18997
Joined: Thu Nov 21, 2002 3:20 pm
Car: 2017 Corvette, 2018 Focus ST, 1993 240sx truck KA Turbo.
Location: Merrimack, NH

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I'm guessing you're talking inches, not mm.
The .0025 is a bit much. You should probably just bore it out.
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