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Silver XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436

  • Part #:
    147027
  • Mfg Part #:
    910-0436
  • OEM/Ref#:
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Silver XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436

  • Part #:
    147027
  • Mfg Part #:
    910-0436
  • OEM/Ref#:
Price: $815.95
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S&S Cycle Silver XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436
  • Forged pistons - coated piston skirts with measurement window and S&S logo
  • Stock 1986-2017 1200cc cylinders can be bored over to accept these pistons
  • S&S Forged 5.5cc Domed Pistons have larger than stock valve pockets - accepts up to 2.00 in. valves
  • 11.2:1 Compression Ratio (compression ratio given is with 60cc combustion chambers)

Kit Contents
S&S 1250cc pistons w/rings and wristpins
S&S 3 9/16 in. bore cylinders
MSL head, base, and exhaust gaskets
Assembly lube
Instructions

Notes: The cylinder fin profile does not perfectly match the fins on 2004 and later stock heads, but the difference is not considered to be objectionable. Compression ratio given are with 60cc combustion chambers. Can not run stock 883 cylinder heads with this kit. S&S does not recommend boring 2004 and later 883cc cylinders from 3 in. to 3 1/2 in. bore to increase engine displacement to 1200cc due to changes in factory cylinder and liner. A smaller O.D. liner and large chamfer on the bottom of the spigot make boring the 883 cylinder not possible. New cylinders are recommended. S&S cylinders match the fin profile on 1986-2003 cylinders heads. Although there is a slight difference in the fin profiles of S&S cylinders and stock 2004-2014 cylinder heads.



Included Items:

(2) Silver aluminum cylinders
(2) Pistons
(2) Piston pins
(4) Circlips
(4) Dowel pins
(2) Ring sets includes (2) top rings, (2) second rings, (4) oil rings and (2) oil ring spacers
(1) Gasket set includes (2) head gaskets, (2) base gaskets and (2) exhaust gaskets

Specifications
Compression Ratio 11.2:1
Mfg #: 910-0436
Part #: 147027
Type Big Bore Kit
Units Each
Weight 22.40 lbs
Alternate/OEM Part Number(s):
09310529
Resources & Manuals
Fitment for S&S Cycle Silver XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436

Part 147027 fits the following machines

Harley-Davidson

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