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SVT saved considerable work by not machining the combustion chambers to match the new larger bore diameter. The result is a lip of material not covered by the head gasket, but it hasn't amounted to anything in testing. But it sure illustrates how a 93.5mm bore on 100mm bore spacing leaves but 6.5mm between cylinders. This narrow area is especially tough on the head gasket and block; engineers found cross-drilling the block to water-cool this area was mandatory to block and head-gasket longevity.