Quote: If you are going to make over 600HP with a stock block, You should ( at least )half fill it - and go aftermarket main caps or a girdle. No question IMO on that one. You should also make sure the block sonic tests real good.
When you say aftermarket main caps, are you referring to the 4 bolt ones? or are there 2 bolts that are available to add strength? I always thought adding 4 bolt caps to a stock block weakened it more than anything
Never been a big fan of girdles...Have always felt that most of the small block designs don't seem like they would do much...but thats just my opinion