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We delivered the engine to the people at Jim Grubbs Motorsports in Valencia, California, where they started by hot-tanking and inspecting the block. When they determined it was in good condition, they began the boring process. This machine bored the engine just slightly under the desired 0.030 overbore.
Building a Better Buick, Part I

We delivered the engine to the people at Jim Grubbs Motorsports in Valencia, California, where they started by hot-tanking and inspecting the block. When they determined it was in good condition, they began the boring process. This machine bored the engine just slightly under the desired 0.030 overbore.  View Related Article