KB 190'S Will I need to machine?

I was going to put KB 107 in my 360 now I'm leaning towards the little added compression of the KB 190'S
looking at mancini's web site it says additional machining will be required is this correct My block is Zero decked and I'm using stock open chamber cylinder heads last 3 casting numbers are 596. I was thinking I should be able to just put them in.

The KB190s should fit without anything special........barring your
pistons aren't +.080 above the deck or heads milled to nothing.

BTW, you can't say you have a "zero deck" block without all the components.

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The KB190s should fit without anything special........barring your
pistons aren't +.080 above the deck or heads milled to nothing.

BTW, you can't say you have a "zero deck" block without all the components.

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Ok I'll give ya that I was going by the Blueprint measurement of 9.588 from crank centerline to the bank