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S&S Cycle 97
Made in U.S.A.
16 Reviews

S&S Cycle 97" Big Bore Kit Black


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J&P Part #:  563-486
Mfr Part #:  910-0205

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S&S Cycle 97
S&S Cycle 97" Big Bore Kit Black

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S&S Cycle 97

S&S Cycle 97" Big Bore Kit Black

Order in the next to ship today

Product Details


Description for S&S Cycle 97" Big Bore Kit Black

• More displacement and performance - go fast!

• Increased fin area for better heat dissipation - be cool!

• Increase bore size from 3.750" to 3.927" - bigger is better!

• Easy installation - no machining or rebalancing required - economical!

• Cosmetic improvements - Hard to tell from stock cylinders

• 11 fins and full fin pattern on cam side closely resembles OEM shape

• S&S Logo and part numbers are less conspicuous

• Better overall appearance

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S&S Cycle 97

Product Specs for S&S Cycle 97" Big Bore Kit Black

Compression Ratio:
Cylinder Bore Size:
Manufacturer Part Number:
Sold in Units:
Warehouse Part Number:

Fitment Questions?

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  • Harley-Davidson®

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Product Notes

Shipping Note

Due to state regulations we cannot ship this item to the state of California.

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Ratings & Reviews

Help Customers Understand This Product

16 Reviews
Rating Breakdown
5 stars
4 stars
3 stars
2 stars
1 star
August 10, 2021
More radical than I expected...
Started with stock TC88 in a 2006 Road King Custom with 55k on the odo. We massaged the twin cam stock heads, Andrews 26G, S&S Lifters, Crane Adjustable Pushrods, S&S Cam Gear drive in a Delkron Backing Plate, Feuling Oil Pressure Relief Spring and Piston, stock headers running into the 2006 Screaming Eagle Slip-ons and tuned the fuel delivery with a Power Commander 20% + across the entire RPM range. Way more power than I was expecting. Clutch slipping so we rebuilt with extra clutch disc's and heavy duty spring - still won't hold! Installing a Barnett High Performance Assembly soon. Excited to see the dynamometer report when we can get all that power to the ground. Super happy.
July 5, 2021
Real nice set. Very complete.
June 1, 2020
I haven't installed it yet but I was impressed with how fast it came in on standard shipping. These people wasn't messing around. Hope to have on soon so I can try it out. I know it will be great tho. I've never been let down by an s&s product
March 25, 2020
Went from 72 hp to 86.5 hp. Big difference very happy!
March 1, 2019
5 Star
March 1, 2019
5 Star
July 30, 2015
Just an update on my last review, I'm so pleased with how much power this kit produces, on a 2000 FLHTCUI twin cam 88 that is now a twin cam 97-10.0:1 compression roller rockers adjustable push rods and a 3 angle valve job and some pocket porting done with STOCK CAMS, and a dyno jet tuner, let's just say even in 5th gear I have no need to down shift ridding 2up with two heavy people on it going from about 30 mph back up to 55+ mph like a breeze and as of now I have about 500 miles on the kit and love it. And I'm going to go with the 551g gear drive came kit to get the max power out of this kit
April 21, 2015
This kit was a lot more than I expected, I love the thicker and beefer cylinders and this meens that the engine will run cooler and love the forged pistons that come with the kit, but please don't forget to get a rocker box gasget kit to complete the installation. It'sa great kit for the price hand's down.
April 21, 2015
Easy fitments, works great. Recommend upgrading your 88 with these!!
December 12, 2014
Fantastic upgrade. I used this big bore kit in conjunction with S&S 551c cams and a Dynojet reprogram. The results were more than I expected. The goal was to gain enough torque/power to prevent the need of downshifting when climbing a grade with a headwind in 6th gear. I gained much more than I had planned for. Easy and straightforward install. Excellent quality with the S&S products. I definitely recommend this kit to others.

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S&S Cycle 97

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