thanks. first time it happened to me. i think this was the 5th engine i put together and the first to explode. the number 8 piston looks like the pin was trying to come out the bottom. ill post some pics at the end of the week when i get it apart.
Dont forget to look into this.
Would not be surprised if your problems are related to this, rods dont try to pul a pin out of the piston without reason.
