I do have a 72 YB 455 HO short block for sale ( 60 over in the car ).....I also have several 455 4 bolts for sale as well...these blocks are cleaned and magged and ready for a build..
.As poncho-mike was saying...these are not cheap...if your restoring a car and need a specific block - that's good
if you doing a race car or non-matching numbers car - a Butler strocker kit might be the way to go
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