Crank/rod/gearbox fatigue - Suzuki SV650 Forum: SV650, SV1000, Gladius Forums

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Old 08-18-2019, 08:47 AM   #1
Join Date: Mar 2019
Posts: 238
Crank/rod/gearbox fatigue

If i had an '04 gen2 engine with 100,000 pretty hard road km on it and I wanted to put a 700cc Wiseco kit with head mods on, would the crank/rods be anymore likely to fail as apposed to using a band new gen3 engine ? Like, would the gen2 crank/rods have lost any of their 'toughness' as apposed to new ones ? *** Keeping in mind that my gen2 engine basically never gets revved past 9,500...

The reason I'm asking is as I look at my brand new gen3 engine I'm finding it hard to willingly pull it apart to put the big bore kit in... common sense is telling me to leave it alone and use it as it is... but i have my gen2 engine that's 15 years & 100,000km on it, more importantly the gearbox, crank & rods are not new and common sense tells me to mod the new engine with all new parts... that's my quandary ... i don't know which one to pull apart...
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