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Sportster® Engine Kits - Zippers Performance

    https://www.zippersperformance.com/all-products/performance-kits/engine-kits/sportster-engine-kits/
    6655-A Amberton Drive Elkridge, MD 21075 (410) 579-2828. Monday - Friday 9AM to 6PM EST

LSR 2-1 Sportster - RB Racing-RSR

    https://rbracing-rsr.com/lsr21/sportster.html
    Bike is a 2009 Sportster with an 88ci engine built by NRHS making about 110 hp and 105 ft lbs of torque. Dan Dunn NRHS V-Twin Performance". 00-1271. 1 3/4" Turn Out for forward controls. Probably a good idea to let a specialist work on your bike. NRHS has a lot of Bonneville experience. Bonneville is sort of the ultimate dyno. Dyno Commentary:

Harley-Davidson Sportster Engines | JPCycles.com

    https://www.jpcycles.com/harley-sportster-engines
    All the parts we carry, plus your Harley Sportster rubber mounted engine, will be precision made by trusted engine experts at the industry's top names like S&S, V-Twin Manufacturing, Genuine James Gaskets, Colony, Cometic, Gardner Westcott, V-Thunder, Arlen Ness, Pro-One, Feuling, and many more. Depending on the overhaul you're doing, we also ...

Harley Sportster Crate Engines | Crate Engine Supplies

    http://crateenginesupplies.com/harley-sportster-crate-engines/
    A Harley Sportster motor is a small four-stroke V-twin engine that has a displacement of 1200 cubic centimeters (CC) and a compression ratio of 9:1. These new or used motors can produce 58 hp at 5,300 RPM and have a stroke of 3.8 inches and a bore of 3.5 inches. 58 products. Shop the best Harley-Davidson Complete Engines at J&P Cycles.

Unlimited Sportster Engines - Nightrider.com

    http://nightrider.com/biketech/hplist_evo_sporty_unlimited.htm
    14 rows

Harley Davidson Sportster: Engine Performance …

    https://www.hdforums.com/how-tos/a/harley-davidson-sportster-engine-performance-modifications-412895
    Sportsters are small and perfectly formed, but as stock they are not slow (they are a quad-cam engine). The XL series was Harley Davidson's first Superbike, the V-Rod of its day, but you might want to get more out of it and here are some pointers as to what you can get and what to expect. Three Stages for Three Budgets Figure 1.

XRX Sportster Hooligan Parts for Racing and Street

    https://www.phillittleracing.com/motorcycle/xrx-sportster-street-tracker-kit
    Sportster dirt track racing. I have restructured these pages with an emphasis on racing. Street riders can also benefit from this information. Advice for Hooligan racers. California Hooligan racer Tony Alves (third in points as of 5/29/19) has words on what works best on the track. Don’t mod the engine with a hot cam-leave it essentially stock.

Your guide to the best Ironhead Sportster customs - Bike …

    https://www.bikeexif.com/tag/ironhead-sportster
    When the first Sportsters rolled out of the Harley-Davidson factory in 1957, they were powered by the iconic ‘ironhead’ motor—which would remain in production until 1985. The Sportster is still in production 60 years later, and the ironhead has the longest production history of any Sportster engine. In the early days, the 55ci motor offered a lot of bang for the buck, with a 7.5:1 …

Drag Racing Engines by Engine Builder Steve Schmidt ...

    https://www.steveschmidtracing.com/racing-engines/drag-racing-engines
    We also offer various short block and cylinder head combinations to choose from. Steve continually strives to build the most innovative drag racing engine combinations for the sportsman racer today! If you have any questions about the engine combination you are interested in, please call 1-800-957-7223 or contact us.

GMS Drag Racing - GMS Racing Engines

    http://gmsracingengines.com/drag1.htm
    Harley-Davidson Drag Racing. Here at GMS Racing Engines we take Harley-Davidson drag racing very seriously. With multiple championships and national records in several classes, we know what it takes to get to the front and stay there. Staying in the winner's circle requires a year-round research and development effort utilizing the state-of-the art in engine design and building …

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