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1978-1981 Honda XL250S
2011-2017 Suzuki DL650A V-Strom 650 ABS
2015-2016 Harley Davidson FLHTKL Ultra Limited Low
Test results prove 28% longer service life than OE and leading competitor brands
S&S Cycle 90-1504 Super Stock EVO Cylinder Heads - Black casual-wear 1978-1981 Honda XL250SS&S heads give great performance now, and work perfectly with additional upgrades later. Kits are fully assembled, and include stainless steel valves and high lift springs (up to . 640 lift). Available in natural and black powder coat finish. Intake manifold, pistons and gasket kits are sold separately; gasket kits contain head gaskets, base gaskets and exhaust pipe gaskets (rocker box gaskets are not included due to the variety of available rocker
