Super Stock 89 cc cylinder heads - 89CC black

Cylinder heads are fully assembled with springs and valves.
Designed for '99-'05 engines with original sump
Suitable for touring motorcycles and other heavy vehicles
Works best on engines over 103" or with high compression pistons
The combustion chamber provides a slightly higher compression ratio than standard, yet manageable in larger capacity engines
2.000" inlet and 1.605" exhaust valves maintain port velocity for good low and mid-range response, and supply sufficient air for slightly enlarged engines.
High-performance S&S® valve springs allow camshafts with up to .650" lift to be fitted.
The intake ports flow 264 CFM (cubic feet per minute) compared to 182 CFM of the original cylinder heads.
Compatible with original swingbox, exhaust and intake manifolds
Includes cylinder heads and four long bolts; reuses four long OEM bolts.
Made in the USA
S&S rocker boxes (ART. NO. 90-4110) must be used if S&S decompressors are fitted.



Specifications


Brand
S&S CYCLE


Supplier reference
90-1106


Engine capacity
89 cc


Colour/finish
Electrostatic powder coating, Black Wrinkle


Material
Aluminium


Model
Super Stock


Product name
Cylinder head kit


Units
Pair