Quote:
Originally Posted by Turbo1dr
I found two pictures digging around on my computer. Again, this is to show people what these heads look like when installed on a 109 engine.
This 109 block has a .030 overbore. The red lines are where the top of the bore needs tapering. The valves do not hit the bore of the engine when opened.
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I'm trying to visualize that, I assume your using a gasket as a pattern. Is there enough material to work with & have you been able to measure how much improvement if it's worth the effort