Crankcase Assembly with 3-1/2in. Bore - Natural. Fits Big Twin 1984-1991 - S&S Brake Upgrades - Front 1 x MS-AS3521

1 x MS-AS3521

but not necessarily the stock performance

Proudly Made in the USA by CP Carrillo Pistons

* Regulator covers & Low Mount Oil Coolers can block air flow & reduce heat dissipation

030 Head Gaskets are not to be used in Stage 6 S&S kits

Crankcase Assembly with 3-1/2in. Bore - Natural. Fits Big Twin 1984-1991 - S&S Brake Upgrades - Front 1 x MS-AS3521Features & Benefits: * Natural Aluminium Finish. * 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