[gsharapa]

Tuff to get to a 427 stroker with a stock block or even the sportman block as you can only bore them out to .030 over and then you have to go big on the stroke, which cause you to notch the block. The throw on the rod is way to long and the engine won't last. You can do 408 pretty safe...

If you want to go to 427 or even up to 454, you need a 351 W (Racing) block or one of the new aluminum blocks that allow you to bore it out to .125 over and then you can put a stroker crank in that does not have that hugh throw on the rod. I suggest you talk to a good engine builder like Keith Craft Racing.........