WinKE55 Posted February 7, 2008 Report Share Posted February 7, 2008 Forklift blocks do have wider bore walls. Just wondering if it would be easier to just buy a 5k block than go to all the trouble to bore the 4k out that much? :) Some of the new drivers like me for an example can't even do simple engine transplants like putting a 5k into my 1981 KE55 hardtop.. New laws say no engine mods that need a blue plate and I am pretty sure you will need a blue plate for a 5k.. though if anyone knows this for a FACT that I don't need a blue plate to put a 5k into my KE55 hardtop? Please tell me. =] Though I run some engineer though I don't think he is that qualified.. he said I would have to get it blue plated. Quote Link to comment Share on other sites More sharing options...
shadow Posted February 7, 2008 Report Share Posted February 7, 2008 You don't need a blue plate. I have a 5k in my Ke70, registered and roadworthy, no mod plate, no problem. Quote Link to comment Share on other sites More sharing options...
minishoulders Posted February 7, 2008 Report Share Posted February 7, 2008 defenitly go for the 5k, and put sum datson pistons in, very strong and reliable, can make 140 hp atw, talk to some1 at kelford cams, they do alot of race k series engine mods Quote Link to comment Share on other sites More sharing options...
rwd-starlet Posted February 8, 2008 Report Share Posted February 8, 2008 (edited) . Edited September 19, 2019 by rwd-starlet Quote Link to comment Share on other sites More sharing options...
trd Posted February 8, 2008 Report Share Posted February 8, 2008 You don't need a blue plate. I have a 5k in my Ke70, registered and roadworthy, no mod plate, no problem. the reason you don't need a blue plate is ke70's came out with 5k's in japan - so you can fit them without having to blue plate them (sorry this is only for ke70's) Quote Link to comment Share on other sites More sharing options...
KE55PIG Posted October 26, 2009 Report Share Posted October 26, 2009 what pistons is every one putting in there 5ks ? I'm looking oversize round 1.5 so 83 ml or around about anyway. Quote Link to comment Share on other sites More sharing options...
KaboomJohn111 Posted July 16, 2018 Report Share Posted July 16, 2018 On 2/7/2008 at 4:54 PM, shadow said: Start with a 5k block in the first place. Eliminates need for trial and error, sourcing issues etc, and gives you 1.5l capacity. I use cast hypotec pistons in my 5k and make an easy 135hp. Do you happen to remember the spcs of your 5k? building one for my ke70 and aiming for about 100hp and be daily drivable Quote Link to comment Share on other sites More sharing options...
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