Weekend Big block swap

With the B-body headers (if you end up being able to use them), they're all reachable from above on the left bank, and on the right only #6 is really impossible even from below unless you have two elbow joints on one arm :rolleyes:

I used a holesaw to make one neat 1-3/8" hole directly opposite #6 and filled it with a metal hole plug. A plastic one will melt quickly. Guess how I know.