The S&S Power Package is the ideal combination of performance and savings, designed to transform your Milwaukee Eight without breaking the bank. For the latest generation HD's, S&S is packaging their brand new 124" and 128" bolt-in Big Bore kits with a 550 cam, cam plate and high flow oil pump as well as valve springs, lifters and pushrods. All kits can be installed without machining the crankcase and are available with gear or chain drive cams and are designed to make big, reliable power.
•4.250" bore cylinders with forged pistons and 11.1:1 compression ratio
•Precision machined billet aluminum oil pump and cam plate
•Your choice of chrome or gloss black pushrod tubes
•S&S Premium Tappets
•Hard anodized billet aluminum tappet cuffs
•S&S 550 camshaft, designed for Big Bore applications
•Your choice of chain drive or complete gear drive that provides improved cam timing accuracy and eliminates stock chain tensioner
•High Performance conical single wire valve spring kit with top and bottom collars, keepers & valve seals
Note: OEM head bolts are a stretch-to-torque design and can only be used once. Consequently, installation requires the use of 8 new head bolts ZPN 782792 or a super strong and re-useable Feuling/ARP head bolt kit ZPN 781168.