Polished Alum. Plain Valve Cover Breather - w/Pvc Vent Tube to (1" Neck Push In) An engine with a 4340

An engine with a 4340 billet steel crankshaft will rev faster and cleaner due to the different harmonics produced from the high grade material

and regulator

All kits come complete hardened parallel washers for an even load distribution and accurate torque readings

These water pump pulleys are made from a 356 aluminum alloy that is heat-treated to T-6 specs

open screen design

Polished Alum. Plain Valve Cover Breather - w/Pvc Vent Tube to (1" Neck Push In) An engine with a 4340These aluminum push in breathers from Speedmaster are just the thing to prevent oil splash while adding some style. They are available in plain and ball milled designs to best suit your tastes and match your ride. Speedmaster breathers keep your crankcase properly vented and add a little shine under the hood. They are available in a wide variety of styles for many applications.