998 +60 thou + 1100 crank = 1152 near enought
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| How Far?998? https://www.ausmini.com/forums/viewtopic.php?f=2&t=7512 |
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| Author: | BLACKRZ_667 [ Tue May 24, 2005 8:28 pm ] |
| Post subject: | How Far?998? |
How far is it posible to boar out a 998cc?? |
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| Author: | min13k [ Tue May 24, 2005 8:38 pm ] |
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um just b4 you go through the water jacket lol sorry i think it is 60 thou ids the largest standard oversize but there has been talk of imp pistons but i think they were for a 1275 makka |
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| Author: | gafmo [ Tue May 24, 2005 8:41 pm ] |
| Post subject: | |
998 +60 thou + 1100 crank = 1152 near enought
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| Author: | drmini in aust [ Tue May 24, 2005 8:49 pm ] |
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Imp 68mm pistons will go on a 1098 crank (with block decked .140") but with a 998 they will be another 0.148" further down the bore.. 
Toss a 1098 crank in, you will get 1220cc approx. But good Imp pistons are very bloody dear now, have to get in from UK or NZ.. <edit> to get a 998 or 1098 block (same thing) out to 68mm you will have to offset the bores. Otherwise you will bore into the main oil feed line from oil pump to relief valve..
Check Vizard's yellow book. These days it's all too much trouble. Easier to find a 1275 block and bore that sucker to 1360 or 1380. As I did..  Or stroke it too, for even more cc, as I will on the next one!
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