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RevTech 100" 4x4 Engine

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J&P Part: 308-399

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RevTech 100" 4x4 Engine

Fitment Note: Fits EVO style frames. May require chasis modification for installation.

• Excellent balance with less vibration

• Reduced piston speed which increases reliability due to lowered stresses

• The 4" piston pushed on these 4" strokes are a special story in themselves

• Unique moly-coated forged pistons

• The bigger bore of the new 100 allowed the use of larger valves, so the ports were also redesigned for better flow

• Smaller combustion chambers provide greater squish area for better turbulence and efficiency

• Roller rockers are employed for better valve train reliability

• Pressed-together flywheels

• Monoblock crankcases are used for excellent reliability

• Blind case bolts, machined fin edges, and John Reed design rocker boxes follow the RevTech tradition of making it work good, and look good

• Loads of horsepower and torque for all types of riding come standard

• Crankcase cast from 356-T6 aluminum with wall thickness optimized for maximum strength, advanced one piece casting and matching techniques allows for near perfect case half alignment, 7/16" cylinder studs proven in drag racing applications

• Flywheels connecting rods and flywheels forged from 4340 chromeoly steel, larger straight 1-1/2″ diameter pressed-in crankpin

• Oiling system is the most advanced scavenging system produced yet for air-cooled V-twin applications resulting in better reliability and increased horsepower, 3:1 ratio oil pump drive gears and high volume oil pump enable significantly increased lubrication and cooling

• Cylinders have more fin area for increased cooling

• Heads have John Reed design sculpted two-piece rocker boxes, more fin area for increased cooling

• Carburation include mukuni HSR42, intake manifold matched to heads for ideal flow efficiency, low profile air cleaner design for high performance while providing improved rider comfort

• Self-contained solid-state ignition

• Andrews EV72 .560" lift cam for good performance and easy starting

Important Product Notes

Product Specs

Alternator or Generator: Alternator

Assembly: Comes Assembled

Finish: Natural Aluminum

Ignition: Yes

Sold in Units: Each


Fitment Note: Fits EVO style frames. May require chasis modification for installation.

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An additional shipping charge of $125.00 will be applied for shipments within the contiguous U.S. Additional oversized shipping charges will be applied for expedited shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout.

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