[1] Ever hear of a V-twin Evo or Twin Cam motor with approximately 85% of available torque coming in at approximately 1500 RPM? We have! At RPMHemi.com we do it all day long with our patented 4 Valve Hemi Bolt on Head Conversion Kits. “This is simply the best performance bolt on for the buck in the V-Twin market!” states Phillip Holmes, VP of Marketing & Sales for RPMHemi.com. You can estimate an approximate 20% power gain. This is a proven technology with both street and racing applications.

How it works: Utilizing our patented 4Valve system in a hemispherical combustion chamber we can increase airflow 1.5 times, increasing the compression ratio while maintaining a 25° spark advance, which gives an equal full burn in the chamber, while preventing pre detonation. All this in a package that is ¼” lower than stock heads. Our headsets and engines are also low in emissions.

RPMHemi.com manufactures their patented 4 Valve Hemi Head Kits and sells complete 97”, 107” and 114” motors with or without our 4Valve Hemi Heads and we have our patented Ram Chamber for single and dual carburetor V-Twin applications.

Currently, we have several OEM motorcycle manufacturers testing our products and all looks good.

Link: [2] Revolution Performance Motors

via: [3] http://thekneeslider.com/