I love this build. because of it and the blue one up the hill in paradise which im sure your familiar with im planning on doing the same thing to my 67 coupe. it's at the chassis shop now if I can ever get my damn Camaro done and free up some cash. Good luck getting it into the 8's.
So I recently pulled my gen4 4.8 in favor of swapping in an aluminum gen4 5.3 that i went through and opened up the gaps on. The only reason I even pulled the motor was because i had to send the converter back to ptc to be loosened up, so i figured may as well try out the 5.3. Little did i know the 4.8 was on its last leg.
I had no idea i had bent the rods, no sign of loss in power, no knocking, nothing. All 8 look just like this one. Anyways got lucky that I didnt window the block.