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Solenberg Performance

Parts, Service, Repair, & Performance For Harleys 1903 & UP

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H-D® Evolution® Engines Cases


These Delkron Evolution® Big Twin motor crankcase castings are produced in the permanent mold process using A356-T6 aircraft aluminum alloy. They are CNC machined to precise tolerances.

Technical Specs

All crankcases are now in our upgraded version and come with bearings, races, and studs installed. Cases are line lapped to standard size. All crankcases come with a Manufacturer’s Statement of Origin. Non-upgraded cases are available by special order only. Requires 1992 to present oil pump. Breathes through heads or crankcase. Fitted for front mount oil filter. Relieved for late model mid shift.

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