# KA rebuild

**URL:** <https://forums.speedlife.net/t/ka-rebuild/97228>\
**Category:** SON240sx Automotive\
**Created:** [June 21, 2006, 8:06pm UTC](https://forums.speedlife.net/t/ka-rebuild/97228 "2006-06-21T20:06:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\
**Post date:** [June 21, 2006, 8:06pm UTC](https://forums.speedlife.net/t/ka-rebuild/97228/1 "2006-06-21T20:06:33Z")

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is it necessary to use oversized pistons rings and bearings during rebuild?

sayyy with a 300 000km engine?

im consdiering a rebuild and having trouble choosing parts.

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**Author:** ![Zeta\_G](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zeta_g/32/5558_2.png) [@Zeta\_G](https://forums.speedlife.net/u/Zeta_G)\
**Post date:** [June 21, 2006, 8:48pm UTC](https://forums.speedlife.net/t/ka-rebuild/97228/2 "2006-06-21T20:48:43Z")

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yes if u wanna done it rite  
u gotta over bore the cylinder wall a bit to make it smooth  
then u’ll need to get oversize piston and rings(don really need perfromance aftermarket, there OEM spec over bore pistions)