This cutaway comparison of a standard 3.8-liter block (left) and a heavy-duty 3.8-liter block (part No. 25500003) reveal thicker main webs, an additional lifter valley rib and heavier pan rails. The H ...
An intensive engine development program at McLaren Engines in Livonia, Michigan, put the Buick V6 into the 850 hp range with intercooling and unlimited boost. Indy engines running at 57 inches of ...
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