1200cc Big Bore Kit – Wrinkle Black. Fits Sportster 1986up with 883cc Engine.
Features & Benefits:-
* Includes Black Cylinders.
* Includes MLS Head Gaskets, Base Gaskets & Exhaust Gaskets.
* Includes Assembly lube & Instructions.
* No machining & No re-balancing.
* No cylinder head modifications.
* The dished piston dome keeps compression down to a streetable 9.4:1 with stock 883cc heads.
* For the best performance CNC head porting, performance cams, exhaust & intake upgrades are recommended.
* EFI re-tuning is required.