WebHere are the Thunderhead rocker boxes and head bolts. You use the factory Sportster rocker hardware, but cut and re-weld the arms to account for the smaller angle between the valves. Here are the new pistons and rings I … WebKnowton's Thunderheads & Racing Engines KTREstore.com The Art of Speed Welcome to the Home of the Horsepower Specialists - Knowlton's Thunderheads & Racing Engines. We offer head porting, engines, builds and machining, transmissions, tuning, carb rebuilds and more. Engine Packages
The Thunderheads tub - Sportster garage
WebSportster thunderheader. 3,648 views Dec 10, 2016. 2002 sportster 883, thunderheads also had a mikuni 42mm carb but i sold the bike. ...more. ...more. WebApr 6, 2024 · There is no room for bigger valves due to the shape and size of the combustion chamber. XR 750 heads would be worse, as they are even smaller, and designed for an … christian ethics vs ethical egoism
Hand Made Tools - IronHeadCycle
WebJul 27, 2014 · Thunderheads NEVER delivered the HP potential that was advertise,if you really wanted to go with aluminum heads use either XR750 heads or STD dual carb … WebMar 6, 2024 · Basically a 1974 XL1000, fresh engine, all new electrics from headlight to taillight, including battery starter etc, new tach and speedo, controls, master cylinder - pretty ood bike really. Plus a set of Thunderheads, intake manifold and Lectron carb to go with the bike. $10K AUD. About 8 grand US. WebApr 2, 2012 · Sputhe Engineering produced two style Ironhead Sportster XR dual carb heads in the early 80's. They made a "bolt on" (hardly) head that utilized stock style Sportster … christiane thiele weimar