big dog evo 117 motor in a fat boy
#1
big dog evo 117 motor in a fat boy
My friend crashed him big dog and totaled it. He bought it back from the insurance company cheap and is looking to part out some of the bike. My dad has a 99 fat boy with an evo motor. Could I buy an S&S crankcase and use the other parts from the big dog S&S 117 motor and put them into the new crankcase and install it into the fat boy? And would I be able to use the big dog clutch basket in the 99 fat boy as well?
#2
Are the current crankcases damaged? If not I'm certain the crankcases for all Evos are the same, so that engine should swap straight over. With a 117" you will certainly need a beefed up clutch. When I installed my S&S 107" I found the primary chain was worn, also the teeth on the compensator, so renewed both of them at the same time.
#3
Griz
#4
#5
I looked into it and found it would be to expensive and may just be more cost efficient to buy a bigger evo motor since I sell stuff on the side. New stronger clutch basket, crankcase, get a shorter rod for the tranny since this was coming of a bike with a 300mm rear tire. Get a better starter, maybe rebuild the tranny to make it a 6 speed. I dont think the clutch basket from the big dog would work with the softail. So this project is shelved and installing larger pistons , cylinders, cam and heads is the way to go.
#7
Those emission 117"s are about .045" below deck, emission cam as well.
98-100 hp and at/near 118 ft/lbs.
They can easily be at 130/135 if wanted.
Scott
98-100 hp and at/near 118 ft/lbs.
They can easily be at 130/135 if wanted.
Scott
__________________
HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility
OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility
OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
Thread
Thread Starter
Forum
Replies
Last Post