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New Complete Revtech 115" Chrome & Polished Engine Motor Harley Evolution Evo

Manufacturer: Custom Chrome


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PART # 680243

Polished & Chrome Finish


1984-1998 Touring, 1984-1999 Softail, 1984-2000 FXR & 84-98 Dyna models.

  Also fits Chopper/Bobber/Rigid applications using Evolution engine


2 Years / 20k Miles

Customer support

Our customer support is available please call us at with any questions

Engine Specs:

RevTech® 115" Engine "
Needing more power, a more dependable and a great looking motor? Well look no further than the all new RevTech 115" from Custom Chrome. Custom Chrome and TDC engineers and technicians spent hundreds of hours developing the RevTech® 125" and 115" with three major goals; high performance, exceptional reliability, and great looks.

The RevTech® 115" was engineered to make more power, early and long. With a bore and stroke combination of 4.125" by 4.300", we designed a wide power band for all occasions. Whether hot-roding through the gears or grabbing a handful to pass, loaded down, riding two-up or just cruising hard these RevTech® engines are made for you!

We began by designing new crankcases, flywheels with pressed-in and keyed shaft and connecting rods forged from the most advanced steel available. We machined the fin edges on the barrels and heads for a great cosmetic look. These and other great features add up to what we believe is the best engine available for your ride. What makes it all the more sweet is that the price is right and offer it in three finishes to match your taste and your budget.

These new engine assemblies will replace 1984 thru 1999 Evolution® style engines.
Assembled with Pride in the U.S.A.

•Cast from 356-T6 aluminum with wall thickness optimized for 
maximum strength

•Blind case bolts for cleaner appearance 
•Smooth crankcase deck to cylinder base profile for 
cleaner appearance 
•7/16" threaded cylinder studs proven in drag racing applications


•Flywheels forged from 4140 
•Pinion and sprocket shaft are pressed in and keyed from 8620 gear material ground and hardened.
•Connecting rods forged from 4340 chromemoly steel - the strongest material available for these applications
•Larger straight 1 1/2"-diameter pressed-in crankpin using 8620 gear material

Oiling System

•Same reliable Evolution style oil system with the addition of internal piston oilers for better heat dissipation

•3:1 ratio oil pump drive gears and high volume oil pump enable 
significantly increased lubrication and cooling


•4.125"-bore with 4.300"-stroke for ideal high torque/high 
horsepower output

•More fin area for increased cooling

•Machined fin edges for better appearance

•Forged JE slipper-skirt pistons


•New RevTech® roller rockers

•More fin area for increased cooling

•Machined fin edges for better appearance

•New compression releases for easy starting

•New "D"-shaped intake ports and manifold


•Mikuni HSR 45 from Mikuni American Corp.

•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 from Daytona Twin Tec


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

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