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Each of the four-bolt blocks received a dedicated crankshaft. L&R supplied both a small-journal 283 steel crank (original large-journal DZ steel cranks were well out of the budget) and matching large-journal 327 cast crank. Pro Comp supplied a new forged steel 350 crank. The cast 327 crank was deemed plenty strong for our dyno testing and ran to 7,000 rpm with no problems.