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The Harley-Davidson With The Biggest V-Twin Engine Today
Harley-Davidson Big-Twin engines have always tended toward the upper end of their contemporary displacement ranges, which ...
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The Biggest Problem With Harley-Davidson's Early Big Twin Engines
However, there were issues with failed valve springs, valvetrain oiling, and oil leakage that required HD to supply dealer repair kits ... Twin Cam 88 as a replacement for the Evolution engine ...