Hemify Your Wedge
With the money saved on the block, we splurged on a serious displacement boost with an ex-Top Alcohol 4340 billet steel crank with 4.375-inch stroke. This is a 0.625-inch (5/8-inch) increase over the stock Chrysler 3.75-inch stroke and yields a nasty 520 cubic inches with our 0.030 oversize, 4.350-inch pistons. The rod journals were reduced to 2.200-inch big-block Chevy diameter, which virtually eliminates the extensive crankcase clearancing required in stroker Chryslers. Chrysler-length (6.770-inch) lightweight 4340 steel rods from Crower and Arias pistons give a lighter bob weight of 2,471 grams (stock 426 Hemi is 3,095 grams). The result is a 520ci Hemi that revs like a small-block!
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