American Parts and Motorcycles

How to Power Tune Harley Davidson 1340 Evolution Engines

A complete practical guide on how to get more power with reliability from Harley's Evolution V-twin engine without wasting money on modifications that don't work and over-specced parts. Includes cylinder head planing and porting; valves, valve springs and valve seats; carburetors, camshafts and followers; crankshaft; connecting rods; pistons; engine balancing; flywheel; main bearings - and much, much more. The links below will take you to a full description of the How to Power Tune Harley Davidson 1340 Evolution Engines book on Amazon.

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