What is wrong with using your February 1955 block for an April built car? I've seen several December, 1954 blocks in cars in the mid-50's and 60's cars and January 1955 blocks in cars in the mid-and-low 100's. I assume your block is a Flint block and not a Tonawanda block. The best way to tell these differences is by the casting date. The flint's only have a 5 for the year and the Tonawanda's have a 55 for the date. Other than that, they are the same. Please post the engine number here and other pertinent facts about your block here before you try to trace down another 1955 block; passengers will work, just make sure you mill the block properly and stamp it properly. For privacy sake, you may not want to post the entire motor number, just the first four numbers and the suffix.
A couple of questions, are you painting it back the original polo white or changing (blue is out, your car is too late, #164 is the last known blue)? Also are you going back to go back to the original automatic (it looks to me of having the signs of not being a prototype 3 speed)?
And don't restorod it. Your car is too original and in good shape. Restore it, the high dollar items will be the air cleaner, shielding (look at Roy Bratz's auction on ebay right now), radio, wheel covers, and carb. The actual engine and parts won't be that hard to find.
p.s., when buying a cam, make sure you get the oiling notch cut in the new one (didn't know if you knew this, but better safe than sorry.)
