April 3, 200917 yr comment_333826 Hi all, Just wondering if anybody is aware of the maximum bore size that the 4k motor can be taken out to. All help is greatly appreciated. Thanks Joe Report
April 6, 200917 yr comment_334408 Hi all, Just wondering if anybody is aware of the maximum bore size that the 4k motor can be taken out to. All help is greatly appreciated. Thanks Joe this is the best i could come up with from the faq, its referring to race pistons for 4K's 0.160". Apart from the fact you'll have little bore wall left and will probably crack the block the first time you rev it hard hope this helps Report
April 6, 200917 yr comment_334410 this is the best i could come up with from the faq, its referring to race pistons for 4K's0.160". Apart from the fact you'll have little bore wall left and will probably crack the block the first time you rev it hard hope this helps Plus you will have endless engine cooling problems if you take it out too far, i wouldn't go out any further than you need. Report
April 6, 200917 yr comment_334411 Just buy a 5k!! :party: They have more bracing ribs on the block as well as thicker bores. Report
April 6, 200917 yr comment_334433 Just buy a 5k!! :party: They have more bracing ribs on the block as well as thicker bores. i agree, like many have said before "there is no replacement for displacement!" reboring a 4k and getting pistons and ring would cost almost as much as a 5k, only difference is that a 5k has more potential. Report
April 6, 200917 yr Author comment_334609 Just one problem, thats finding the 5k. lol thankyou for your help Report
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