S&S Crankcase Assembly with 3-1/2in. Bore – Black. Fits Big Twin 1984-1991.

Description

Features & Benefits:-

* Wrinkle Black.

* Perfect for stock replacement & high performance applications

* These crankcases offer some unique features.

* Besides being machined for a crank position sensor, they are also compatible with stock flywheel assemblies, primary covers, gearcovers and are clearanced for 38 amp alternator stators.

* Relocated cam chest oil pick-up increases gear case scavenging & virtually eliminates oil carry-over at sustained high speeds.