Bill Jenkinsliterallywrote the book on Chevrolet small-block performance. It stands to reason, therefore, that the Grump should be called on to toy with the mouse's minor derivative—the new Chevy ...
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 ...
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