The only reason for having my piston fabricated at the time i blew up the original motor, there we no aftermarket pistons on the market all.. Until AK1 had JE keep a mold of his, but i was already in the process of making a set.. THe reasoning of having Titanium heads, one there just strong as shit, and this guy who was there had the idea of having it done, on a Spoon motor All Version had brought it. I like the idea, so my boyz dad did the work for me.. She bored to 2.81 at a stroke of i believe 71mm, i could be wrong but im pretty sure thats as far as he went with it..