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PERFORMANCE MOTORCYCLE PARTS AND KITS FOR AMERICAN V-TWINS

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S&S performance lower end products to fit vintage 1936-1984 big twin models.

Products > Vintage > 1936-1984 Big Twin Models > Lower End

Displaying 1 - 30 of 47 Product(s):
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Breather Gear Kit for 1948-E77 Big Twin (33-4263)
  • Steel breather gear kit with shims
  • Better dimensional stability at high temperatures
  • +.030" oversize, 1948 - Early 1977 big twin
$119.95
  • Compatible with point of electronic ignition systems
  • Choose Polished or Chrome Plated Finish
  • 1973–'92 Big Twins
$449.95 - $479.95
  • Intended for Engines that make use of a Notched Flywheel and Crank Position Sensor for Ignition Timing
  • Polished Billet Finish
  • 1973–1992 Big Twins
$369.95 - $399.95
  • KN-Series
    • Uses a 28 lb pop-off spring to lower oil pressure at high RPM
    • Silver Powder Coat
$455.95
  • Oil Filter Bracket Assembly
  • Fits 1992 -1999 Big Twin & 1970 - 1999 engines with S&S Cases
$217.95
  • Polished Billet Finish
  • Designed to be installed and removed w/o removing the cylinder head
  • Fits all generator crankcases for 1936–'69 engines
$499.95
  • Bushings installed and sized – ready to install
  • Polished Finish
  • 1936 - 1953 Big Twin w/ stock cases or 1954-'62 & 1966-'69 with stock cases*
  • Billet
$488.95
  • KN-Series Engines
  • 4 1/2" Stroke
$1,134.95
Flywheel Assembly for Flathead Power® P-Series Engines 1954–'64
$1,134.95 - $1,184.95
Flywheel Assembly for Flathead Power® SH-Series Engines 1966–'84
$1,134.95 - $1,184.95
  • 3-13/16 Stroke Flywheel Set
  • Not available balanced or assembled
  • Fits 45" flathead 45" KR and WR engines
$545.95
$628.45
  • 1941–'81 big twins
  • Heavy Duty or Supreme
$399.95 - $482.95
  • 1981–'84 big twins
  • Heavy Duty or Supreme
$399.95 - $482.95
Heavy Duty Connecting Rod for 1936–'52 OHV Big Twins (34-7003)
$443.95
  • Special keyed 6° large diameter taper. provides more contact area, increasing strength
  • Standard S&S tapered crankpin and pinion shaft are used for ease of service
  • Flywheels for EFI applications are machined with timing notches compatible with
    factory crank position sensors
$1,134.95
$1,895.00
 View ProductStandard Size Breather Gear Kit for Late 1936-Early '47 Big Twin (106-6010)
  • Steel breather gear kit with shims
  • Better dimensional stability at high temperatures
  • Standard size
$119.95
  • Alternator Style
  • Natural Finish
  • 1970–1984 Big Twins
$1,154.95 - $1,174.95
$1,594.95
Crankcase Assembly
  • 3-5/8" Bore Alternator Crankcase Assembly, Natural Finish
  • Compatible with stock 1970 - 1984 flywheel assemblies, primary covers & gearcovers
  • 1970 - 1984 big twin
$1,154.95
Crankcase Assembly
  • Stock Bore Generator Crankcase Assembly, Natural Finish
  • Machined to fit stock 1948 -1964 Panhead engines with tin primary
  • Pre-clearanced for strokes up to and including 5"
$1,594.95
Oil Pump Kit
  • Requires 1973-' 77 breather gear
  • Gears and shims not included
  • Polished billet, 1973 - 1991 Big Twin
$327.95
Oil Pump Kit
  • Universal cover with top and bottom feeds
  • Gears and shims not included
  • Polished billet, 1936 - 1969 big twin
$327.95
Oil Pump Kit
  • Oil pump kit with drive gear, breather gear and shim kit
  • Polished billet finish\
  • Fits 1970 - 1977 big twin

 

$455.95
Oil Pump Kit
  • Oil pump kit with drive gear, breather gear and shim kit
  • Polished billet finish
  • Fits 1978 - 1991 big twin
(1)
$455.95
Oil Pump Kit
  • Oil pump kit with drive gear, breather gear & shim kit
  • Polished billet finish
  • Fits 1954 - 1969 big twin

 

$455.95
Oil Pump Kit
  • Oil Pump Kit w/ drive gear, breather gear & shim kit
  • Polished Billet Finish
  • Fits 1948 - 1953 Big Twin
  • $465.95
    Alternator Gearcover Kit
  • Flangeless style
  • Includes gaskets and mounting hardware
  • 1973 - 1992 big twin
  • $166.95
    Alternator Gearcover Kit
  • Flanged style
  • Includes gaskets and mounting hardware
  • Cast Natural Finish, 1973 - 1992 big twin
  • $166.95