81.5mm wiseco 9:1 clearance on b18b1 block
06-27-2009, 04:39 PM
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81.5mm wiseco 9:1 clearance on b18b1 block
Sup Guys?? I had this guy assemble my block... First he said that it needed to be bored cuz the cylinder wall was scratched... so he went and got 81.5mm pistons... now the question: HOW MUCH CLEARANCE SHOULD I HAVE BTWEEN THE CYLINDER WALL AND THE PISTON? Cuz i dont really no if he really bored it...
06-28-2009, 07:31 AM
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Re: 81.5mm wiseco 9:1 clearance on b18b1 block
What does cylinder clearance have to do with him boring it? Stock pistons measure 80.97mm or somwhere in that range. Typically aftermarket pistons go go with a little more clearance then that, like .07 (so your pistons would be 81.43mm). Keep in mind that the top of the piston probably measure 80.xxmm and towards the bottom of the skirt measures 81.4x.
06-28-2009, 10:44 AM
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Re: 81.5mm wiseco 9:1 clearance on b18b1 block
Im sorry man, im new to this... : if i have .07 on the top of the piston, would it b enough clearance? Cuz i no it will expand, so im afraid its not enough clearance... thanks for ur help man!
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