Sifton Hydraulic Tappet Assemblies For Harley Big Twin 1953-1984

With the Tornado Turbo Kit from Trask Performance you can expect to see 40-50% horsepower gains and still run on pump gas! This all-inclusive kit can be installed in 8-10hrs by a trained technician, a fraction of the time that a full engine build takes.

S&S® Super Stock® cylinder heads cater to 2006-2016 engines, enhancing performance for stock displacement units and excelling with bigger stroker or big bore engines up to 110″. With an 89cc combustion chamber, it strikes a balance between higher compression ratios and manageability, making it ideal for touring bikes and heavy vehicles. It features large 2.000″ intake and 1.605″ exhaust valves for robust low and midrange response, complemented by intake ports flowing 264 cfm. The heads support camshaft installations up to .650″ lift and are compatible with stock rocker boxes, exhaust, and intake manifolds, all while boasting a wrinkle black powder coat finish for aesthetic synergy with stock engine components.