Originally Posted by Top Gun 777
Yes you can change from 5 to 3 port piston/liner within the same construction-it will fit perfectly.
About performance-it is questionable-some people claim that 5 ports is faster and I personaly doubt it. If you use good 3 P/L set with outlaw carb and pipe it will be as fast as 5 port if not faster.
Edward
That's great news, thanks Top Gun, will go ahead with the new LS 3 port sleeve for my S5...if they have the new ones.
BTW, what does P/L stand for? Thanks.