Why in heck would you do that? Taking the wrong sleeves and getting them machined makes zero sense. The original single-ring sleeves haven't even been made in over 30 years. Just buy the correct sleeves - no machine shop needed.I think you've got your parts mixed up. The early engines came with single-ring sleeves and the sleeves had squared-off bottoms -not tapered. One black seal on the sleeve, none in the block. The next block series got a single-seal sleeve with a bullet-nose, tapered bottom - and also two grooves cut into the block that hold two more seals. One black, and one red - and the red one is designed to expand as soon as coolant contacts it to fill up voids. For the older blocks, you cannot buy the original sleeves anymore. The upgraded sleeves for the old engines come with three grooves ON the sleeve and they take three seal rings. They have been the only sleeve available for the old engines for over 30 years. If sounds like you bought the wrong sleeves with the bullet-shaped bottoms - which are only meant to be used in later blocks that have the two grooves already in the block.
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