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STD High Performance
Big Twin Engine Assemblies

Ready-to-run, pre-tested and pre-tuned STD Complete Engines in both 97 Cubic Inch or Long Rod 100 Cubic Inch configurations. Each engine is carefully machined and assembled to exacting tolerances by our staff of experienced builders. Engine Assemblies come complete with all the finest performance components including full electrics, and a Mikuni Carburetor.

The STD Development Performance Big Twin has been designed to produce the highest, most reliable power and torque available. Our Basic STD 97 ci. Big Twin Engine is rated at 110+ horsepower, our STD Big Bore Engines are rated up to 180 horsepower!

Included with each engine: Ignition System, 2 Single Fire Coils, 4 Autolite Spark Plug (4265AP), 2 sets of 8mm Universal Spark Plug Wires, Smoothbore Mikuni Carburetor with Air Cleaner Assembly, Oil Pressure Sending Unit, and an Oil Filter Mount with Filter.

STD Basic High Performance Engine Assemblies
• 97ci Big Twin Evo Style Call for Current Pricing
• 88ci Big Twin Reto Pan/Shovel and Shovelhead Style Call for Current Pricing

STD Basic and Big Bore Performance Engine Specifications
for Big Twin Evolution and Retro Panhead, Shovelhead Style Engines