JOSH CINCO Posted November 3, 2017 Report Posted November 3, 2017 I just want to ask if my 4k engine will increase power if i will put 3k pistons(highcomp) btw, my engine was ported and polished and shaved head. Quote
rebuilder86 Posted November 4, 2017 Report Posted November 4, 2017 whereabouts are you josh? I'm in toledo , cebu. u need to let the guys here know exactly which 4k u have, but even better still, because of all the rebuilt motors here in the philippines, u really need to confirm which pistons are actually in it now. Mine is a 4kU which happens to be quite popular here, with the D shape dished pistons. have a look with a flashlight down ur spark pkug holes and see if u can see a dish on the crown. i believe u should get a bit better compression from flat top pistons but I'm not sure that it would be worth it unless you allready plan to have the engine apart. whatever u do, make sure you change the spark plugs to suit the new flat pistons. Quote
Taz_Rx Posted November 4, 2017 Report Posted November 4, 2017 I think 3k pistons in a 4ku would give you too high of a C/r Quote
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