PermaBanshee

ye, now i already understand what a 4mill is...the second question was about how people get that +4 setup with a longer rod (''4mill longrod setup'')...i got my answer by @keno , with a bigger crank

thaaaats it, that's the answer i was looking for...thx for all the replys guys. i already understand that +4 mean extra stroke but my question was about the point on putting a longer rod, I could not understand how they got that extra stroke with a longer rod, now i understand with a ''bigger'' crank... sorry for my english again xD

Yes, I understand that, but how do you get this extra stroke with a longer rod and stock cylinder? by a more diameter crank? thanks for the reply

Sorry for this noob post, but i can not understand what a ''4mill'' is, specially stroker build...and whats the difference between 421 cylinders and a 4mill setup. hope you guys can help me, thanks. (i understand that is more CC like 392, 421...but how you get more CC with a longer rod and same bore?) sorry for my english and nice forum