Engine Performance Kits

Out of Stock

S&S 131" Stroker Cylinder and Piston Kit with Black Fins for Harley M8

Now: $1,358.95

MSRP: $1,509.95

Was:
Out of Stock

S&S 131" Stroker Cylinder and Piston Kit with Highlighted Fins for Harley M8

Now: $1,559.95

MSRP:

Was:
The item has been added

S&S 100" Power Package Kit Gear Drive for 1999-2006 Harley Twin Cam - Black

Now: $3,057.25

MSRP: $3,396.95

Was:
CHOOSE OPTIONS

S&S 128" Power Package Big Bore Kit Oil-Cooled for 114"/117" Harley M8

MSRP: $3,294.95

Was:

Now: $2,965.45 - $3,148.95
CHOOSE OPTIONS

S&S 128" Power Package Big Bore Kit Water-Cooled for 114"/117" Harley M8

MSRP: $3,294.95

Was:

Now: $2,965.45 - $3,148.15
Out of Stock

S&S 129" Power Pack Gear Drive Oil Cooled Kit for 107" Harley M8

Now: $3,023.95

MSRP: $3,359.95

Was:
The item has been added

S&S Sidewinder 4" Big Bore Kit 100" for 1999-2006 Harley Twin Cam - Silver

Now: $1,386.85

MSRP: $1,540.95

Was:
The item has been added

S&S 100" Power Package Kit Chain Drive for 1999-2006 Harley Twin Cam - Silver

Now: $3,057.25

MSRP: $3,396.95

Was:
The item has been added

S&S 100" Power Package Kit Gear Drive for 1999-2006 Harley Twin Cam - Silver

Now: $3,057.25

MSRP: $3,396.95

Was:
The item has been added

S&S 110" Power Package Kit Gear Drive for 2007-2017 Harley Twin Cam - Black

Now: $3,057.25

MSRP: $3,396.95

Was:
Out of Stock

S&S 124" Power Package Kit Gear Drive Oil Cooled for 107" Harley M8 - Highlighted Fins & Chrome Pushrod Tubes

Now: $3,023.95

MSRP: $3,359.95

Was:
Out of Stock

S&S 128" Power Pack Kit Gear Drive Oil Cooled for 114" Harley M8 - Highlighted Fins and Chrome Pushrod Tubes

Now: $3,023.95

MSRP: $3,359.95

Was:
CHOOSE OPTIONS

S&S 132" Power Package Big Bore Kit Water-Cooled for 114"/117" Harley M8

MSRP: $3,294.95

Was:

Now: $2,965.45 - $3,148.15
The item has been added

S&S 96" Sidewinder Big Bore Kit for 1984-1999 Harley Big Twins - Natural

Now: $2,879.95

MSRP:

Was:
The item has been added

S&S Sidewinder 4" Big Bore Kit 110" for 2007-2017 Harley Twin Cam - Silver

Now: $1,386.85

MSRP: $1,540.95

Was:
The item has been added

S&S 110" Power Package Kit Chain Drive for 2007-2017 Harley Twin Cam - Silver

Now: $3,057.25

MSRP: $3,396.95

Was:
The item has been added

S&S 110" Power Package Kit Gear Drive for 2007-2017 Harley Twin Cam - Silver

Now: $3,057.25

MSRP: $3,396.95

Was:
Out of Stock

S&S 124" Power Package Kit Chain Drive Water Cooled for 107" Harley M8 - Highlighted Fins & Chrome Pushrod Tubes

Now: $2,798.95

MSRP: $3,109.95

Was:
Out of Stock

S&S 124" Power Package Kit Gear Drive Oil Cooled for 107" Harley M8 - Highlighted Fins & Black Pushrod Tubes

Now: $3,023.95

MSRP: $3,359.95

Was:
Out of Stock

S&S 124" Power Package Kit Gear Drive Oil Cooled for 107" Harley M8 - Non-Highlighted Fins & Black Pushrod Tubes

Now: $2,960.95

MSRP: $3,289.95

Was:
CHOOSE OPTIONS

S&S 124" Power Package Kit Water Cooled for 107" Harley M8

MSRP: $3,294.95

Was:

Now: $2,965.45 - $3,148.15
Out of Stock

S&S 128" Power Pack Kit Chain Drive Oil Cooled for 117" Harley M8 - Granite and Chrome Pushrod Tubes

Now: $2,849.35

MSRP: $3,165.95

Was:
Out of Stock

S&S 128" Power Pack Kit Chain Drive Water Cooled for 114"/117" Harley M8 - Granite and Chrome Pushrod Tubes

Now: $2,798.95

MSRP: $3,109.95

Was:
Out of Stock

S&S 128" Power Pack Kit Gear Drive Water Cooled for 114" Harley M8 - Highlighted Fins and Chrome Pushrod Tubes

Now: $2,960.95

MSRP: $3,289.95

Was:

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