1250 cc Conversion Kit - 9/16"

Converts 883 cc and 1200 cc Sportster models '86-'21 to 1250 cc capacity
Forged pistons with larger valve pockets than standard and compatible with valves up to 2.00".
Forged pistons – skirts coated with measurement window and S&S logo
No machining or balancing required.
The kit includes S&S 1250 cc pistons with rings and pins, S&S 3-9/16" cylinders, MLS (Multi-Layer Steel) head, base, and exhaust gaskets, assembly lubricant, and instructions.
Manufactured in the USA
Not compatible with XR1200 models.
883 models will require XL1200 cylinder heads to achieve the correct compression ratio.
For best performance, CNC cylinder head machining, high-performance camshafts, and exhaust and intake improvements are recommended.



Specifications


Brand
S&S CYCLE


Supplier reference
910-0691


Engine capacity
1250 cc


Colour/finish
Black


Cylinder Dimensions
3,562"


Style
Big Bore


Stroke length
3-13/16"


Material
Aluminium, Cast, Iron


Product name
Cylinder Kit


Compression ratio
10,3:1


Compression ratio
10,3:1


Type
Flat head


Units
Kit