Need Assistance?
Legendary Service... Ask Your Friends - Since 1969
800.969.7501
Over 160K Powersport Items - In-Stock and ready to ship today! View tires, apparel, helmets, exhaust and more!

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

  • Part #:
    147027
  • Manufacturer Part #:
    910-0436
Our Price: $1,008.95
Ships In 3-4 Business Days

Overview of S&S Cycle 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
  • 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
Instructions

Specs for S&S Cycle XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436

Compression Ratio 11.2:1
Type Big Bore Kit
Units Each
Weight 22.40 lbs

Specs for S&S Cycle XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436

Compression Ratio 11.2:1
Type Big Bore Kit
Units Each
Weight 22.40 lbs

Fitment for S&S Cycle XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436

See if this part fits your ride

Part 147027 fits the following machines

Harley-Davidson
  • 1987 Harley-Davidson Sportster - XLH 1100
  • 1986 Harley-Davidson Sportster - XLH 1100
  • 2003 Harley-Davidson Sportster - XLH 1200
  • 2002 Harley-Davidson Sportster - XLH 1200
  • 2001 Harley-Davidson Sportster - XLH 1200
  • 2000 Harley-Davidson Sportster - XLH 1200
  • 1999 Harley-Davidson Sportster - XLH 1200
  • 1998 Harley-Davidson Sportster - XLH 1200
  • 1997 Harley-Davidson Sportster - XLH 1200
  • 1996 Harley-Davidson Sportster - XLH 1200
  • 1995 Harley-Davidson Sportster - XLH 1200
  • 1994 Harley-Davidson Sportster - XLH 1200
  • 1993 Harley-Davidson Sportster - XLH 1200
  • 1992 Harley-Davidson Sportster - XLH 1200
  • 1991 Harley-Davidson Sportster - XLH 1200
  • 1990 Harley-Davidson Sportster - XLH 1200
  • 1989 Harley-Davidson Sportster - XLH 1200
  • 1988 Harley-Davidson Sportster - XLH 1200
  • 2017 Harley-Davidson Sportster Custom - XL 1200C
  • 2016 Harley-Davidson Sportster Custom - XL 1200C
  • 2015 Harley-Davidson Sportster Custom - XL 1200C
  • 2014 Harley-Davidson Sportster Custom - XL 1200C
  • 2013 Harley-Davidson Sportster Custom - XL 1200C
  • 2012 Harley-Davidson Sportster Custom - XL 1200C
  • 2011 Harley-Davidson Sportster Custom - XL 1200C
  • 2010 Harley-Davidson Sportster Custom - XL 1200C
  • 2009 Harley-Davidson Sportster Custom - XL 1200C
  • 2006 Harley-Davidson Sportster Custom - XL 1200C
  • 2005 Harley-Davidson Sportster Custom - XL 1200C
  • 2004 Harley-Davidson Sportster Custom - XL 1200C
  • 2003 Harley-Davidson Sportster Custom - XL 1200C
  • 2002 Harley-Davidson Sportster Custom - XL 1200C
  • 2001 Harley-Davidson Sportster Custom - XL 1200C
  • 2000 Harley-Davidson Sportster Custom - XL 1200C
  • 1999 Harley-Davidson Sportster Custom - XL 1200C
  • 1998 Harley-Davidson Sportster Custom - XL 1200C
  • 1997 Harley-Davidson Sportster Custom - XL 1200C
  • 1996 Harley-Davidson Sportster Custom - XL 1200C
  • 2008 Harley-Davidson Sportster Custom (EFI) - XL 1200C
  • 2007 Harley-Davidson Sportster Custom (EFI) - XL 1200C
  • 2017 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2016 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2015 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2014 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2013 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2012 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2011 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2010 Harley-Davidson Sportster Forty-Eight - XL 1200X
  • 2011 Harley-Davidson Sportster Low - XL 1200L
  • 2010 Harley-Davidson Sportster Low - XL 1200L
  • 2009 Harley-Davidson Sportster Low - XL 1200L
  • 2006 Harley-Davidson Sportster Low - XL 1200L
  • 2008 Harley-Davidson Sportster Low (EFI) - XL 1200L
  • 2007 Harley-Davidson Sportster Low (EFI) - XL 1200L
  • 2012 Harley-Davidson Sportster Nightster - XL 1200N
  • 2011 Harley-Davidson Sportster Nightster - XL 1200N
  • 2010 Harley-Davidson Sportster Nightster - XL 1200N
  • 2009 Harley-Davidson Sportster Nightster - XL 1200N
  • 2008 Harley-Davidson Sportster Nightster (EFI) - XL 1200N
  • 2007 Harley-Davidson Sportster Nightster (EFI) - XL 1200N
  • 2017 Harley-Davidson Sportster Roadster - XL 1200CX
  • 2016 Harley-Davidson Sportster Roadster - XL 1200CX
  • 2006 Harley-Davidson Sportster Roadster - XL 1200R
  • 2005 Harley-Davidson Sportster Roadster - XL 1200R
  • 2004 Harley-Davidson Sportster Roadster - XL 1200R
  • 2008 Harley-Davidson Sportster Roadster (EFI) - XL 1200R
  • 2007 Harley-Davidson Sportster Roadster (EFI) - XL 1200R
  • 2016 Harley-Davidson Sportster Seventy Two - XL 1200V
  • 2015 Harley-Davidson Sportster Seventy Two - XL 1200V
  • 2014 Harley-Davidson Sportster Seventy Two - XL 1200V
  • 2013 Harley-Davidson Sportster Seventy Two - XL 1200V
  • 2012 Harley-Davidson Sportster Seventy Two - XL 1200V
  • 2003 Harley-Davidson Sportster Sport - XL 1200S
  • 2002 Harley-Davidson Sportster Sport - XL 1200S
  • 2001 Harley-Davidson Sportster Sport - XL 1200S
  • 2000 Harley-Davidson Sportster Sport - XL 1200S
  • 1999 Harley-Davidson Sportster Sport - XL 1200S
  • 1998 Harley-Davidson Sportster Sport - XL 1200S
  • 1997 Harley-Davidson Sportster Sport - XL 1200S
  • 1996 Harley-Davidson Sportster Sport - XL 1200S
  • 2017 Harley-Davidson Sportster Superlow - XL 1200T
  • 2016 Harley-Davidson Sportster Superlow - XL 1200T
  • 2015 Harley-Davidson Sportster Superlow - XL 1200T
  • 2014 Harley-Davidson Sportster Superlow - XL 1200T
There are no reviews for this item. Write Review
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!

Instructions and Manuals for S&S Cycle XL 1200 to 1250 Conversion Big Bore Kit (Silver) - 910-0436

You May Also Be Interested In