1200cc Big Bore Kit – Silver. Fits Sportster 1986-2021 with 883cc Engine.

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Features & Benefits:-* Will Not Fit XR1200* Includes silver cylinders. * Includes MLS Head Gaskets, Base Gaskets & Exhaust Gaskets.* Includes assembly lube & instructions.* No machining & No rebalancing.* No cylinder head modifications.* The dished piston dome keeps compression down to a streetable 9.4:1 with stock 883cc heads.Tech Tip:-* For the best performance CNC head porting, performance cams, exhaust & intake upgrades are recom mended* EFI re-tuning is required.Proudly Made in the USA by S&S Cycle !
MFR PART No: 910-0688

ROLLIES PART No: SS910-0688






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