has anyone ever ran this type of piston im trying to see if their worth it or not

 

they make springs and retainers and theyv held pretty good for me.
seems as though their pistons are new, but if there other stuff is good. give them a try. but ther are alot of optoins and companies that make forged punchers for hondas

 

yea i just found a set for 390 and i didnt see really any review on them

 

so u just running the springs and retainers or valves to i was looking at their vavles

 

stg1 turbo cams. with titanium retainers and dv springs. with a ported head....very nice spooler uppper