SB Chev 355 or 406

[carl hinkson]

Originally Posted by Rich Biebel

The reason I mentioned core shift is on one engine I built it was off so far that rod clearance at the bottom of the cylinders was way off from one side to the other. I had to use a different rod than what we originally picked to get clearance without excessive grinding at the bottom of the block but only on one bank.... The cam hole showed the offset where it was machined flat at the face and that is a real good indicator...


Factory blocks can be way off...for sure...

Again don't go by the cam plug hole its not a good indicator for cylinder placement. Sonic test is the only way to go.