Harley-Davidson’s Revolution Max 1250 engine was assembled at the company’s Pilgrim Road Powertrain Operations facility in Wisconsin. The V-Twin features a 1,250cc displacement with a bore and stroke of 4.13˝ (105mm) x 2.83˝ (72mm) and is capable of 150 horsepower and 94 ft.-lbs. of torque with a peak rpm of 9,500 and a 13:1 compression ratio.
Getting more motorcycle-based business is not at all difficult. Your automotive background will serve as an excellent base of knowledge, and demand is building for powersports engine machining as well as metric and European street bike work.
The 10-time champion H-D Screamin’ Eagle/Vance & Hines drag racing team talk through the skills, strategies, and experience of running a motorcycle through the quarter-mile dragstrip.
Harley-Davidson offers power-hungry street riders a new performance option with the introduction of the Screamin’ Eagle Milwaukee-Eight 131 Crate Engine for select Softail model motorcycles. The new 131 cid V-Twin engine delivers the biggest, most powerful street-compliant engine Harley-Davidson has ever created. The Screamin’ Eagle 131 is a bolt-in replacement engine for select 2018-later model Harley-Davidson Softail
The V-twin market has been slowly tumbling downhill for the past few years, but it’s not all bad news. The two-wheeled community is coming together to form initiatives that will bring in new riders, and Harley says it signed up more than 3 million of them in 2019.
The Screamin’ Eagle 131 is a bolt-in replacement for 2017-later model Harley-Davidson Touring motorcycles originally equipped with a Milwaukee-Eight oil-cooled or twin-cooled engine.
S&S has improved upon its Big Bore Kits for Harley-Davidson Sportster Models. Each kit is still the same high quality liner wrapped in cast aluminum and each includes high compression pistons, rings, clips and gaskets.
As one of the youngest people to ever reach Harley-Davidson’s Master Technician level, Marty Smestad of Capitol Speed Shop knows a thing or two about V-Twin work. He recently took parts from a 2007 Road King and 2015 Street Glide to build a customer a Harley-Davidson Twin Cam 107cid engine.
The Harley-Davidson cylinder head aftermarket is broad and deep with offerings from mildly modified stock castings to all-out racing billets. We see the whole range of this market on a daily basis here at GMS.
A customer in Toronto recently turned to Gregg Dahl and GMS Racing Engines for a Fast Bracket Racing drag bike engine. Dahl answered the call as those engines are his specialty. The result was this 200 hp S&S-based Harley-Davidson Evolution V-Twin engine.
United Engine & Machine’s new KB Super Duty piston series for Harley Twin Cams features Line2Line Abradable Coating as standard on every piston in the new line.
For the past 36 years, Dan Fitzmaurice and the folks at Zipper’s Performance Products have been helping other engine shops deliver more power and performance to customers through the development of its motorcycle engine kits.