sotaorava Posted September 24, 2012 Share Posted September 24, 2012 hi i have my L28 block ready to bore for KA24E pistons but pistons didnt have any paper with them how much "over" KA24E piston diameter should i bore so that head expansion for block and pistons is ok any recommendations? or what bore have you used? Quote Link to comment Share on other sites More sharing options...
ctc Posted September 24, 2012 Share Posted September 24, 2012 (edited) hi i have my L28 block ready to bore for KA24E pistons but pistons didnt have any paper with them how much "over" KA24E piston diameter should i bore so that head expansion for block and pistons is ok any recommendations? or what bore have you used? Depends on piston type forged or cast? You can search here on HybridZ for what clearances to run with cast or forged pistons. Take the pistons to the machine shop with the block. Have the block matched to the pistons, standard practice of any good engine builder / machine shop. I would sonic check the block for cylinder wall thickness when boring over 88mm, but I tend to be conservative. Edited September 24, 2012 by ctc Quote Link to comment Share on other sites More sharing options...
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