As I begin to tear the car apart and setting it up for the new engine and trans, I knew a lot of changes were necessary to the car itself. Eliminating the MSD box and ignition coil, and replacing it with the Distributorless Ignition from Electromotive prompted the need for the firewall to be redone a second time. This time, however, I smoothed out all of the factory seams and relocated the wiper motor to be under the fender. A 5-foot-long seam and 30 holes were welded, ground, and smoothed, and all of the wires were painstakingly hidden as well.After the original 400 managed to wipe out it's 3rd set of rod bearings, I knew big changes were coming. I immediately had in mind to do a 455, utilizing the already ported "A" code heads. Don Scinto Automotive in Stratford, CT located a late 60's 455 block with a mid 60s 425 crank. We had the rod journals cut and offset ground to give a 4.25" stroke and 2.100" SB Chevy rod bearing. This prompted the need for SB-Chevy-bearing-sized custom rods, and we decided on billet steel 6.800" long pieces from Oliver. Probe supplied us with a set of forged .030" oversized Pontiac pistons with floating pins, giving us around 9.5" compression. A main girdle from Dick Miller Racing and filled water jackets helped stiffen the block for all of the air that the Vortechs would soon be cramming into it. Seeing this shortblock come together over many months of planning was a beautiful sight to see.