Collection: Engine and Transmission SI

816 products
  • G3025 INLET VALVE SEAT B
    G3025 INLET VALVE SEAT B
    Regular price
    $229.95
    Sale price
    $229.95
  • D3065 INLET VALVE SPRING B,C,D,E
    D3065 INLET VALVE SPRING B,C,D,E
    Regular price
    $56.74
    Sale price
    $56.74
  • 16A19 INLET PLUG SPARK PLUG 1916-19 POWERPLUS
    16A19 INLET PLUG SPARK PLUG 1916-19 POWERPLUS
    Regular price
    $149.95
    Sale price
    $149.95
  • 23B72 SHORT CLUTCH WORM
    23B72 SHORT CLUTCH WORM
    Regular price
    $399.95
    Sale price
    $399.95
  • N5152 16B74 OUTSIDE OPERATING LEVER GEARBOX
    N5152 16B74 OUTSIDE OPERATING LEVER GEARBOX
    Regular price
    $159.95
    Sale price
    $159.95
  • N4800/4772
    N4800/4772
    Regular price
    $179.95
    Sale price
    $179.95
  • 27C73 S1192 840 MANIFOLD INLET 750 101
    27C73 S1192 840 MANIFOLD INLET 750 101
    Regular price
    $389.95
    Sale price
    $389.95
  • 708 CLUTCH PEDAL FRICTION DISC TENSION SPRING & NUT
    708 CLUTCH PEDAL FRICTION DISC TENSION SPRING & NUT
    Regular price
    $14.95
    Sale price
    $14.95
  • 1721 16A62 BLACK FINISH pack of 8 base studs
    1721 16A62 BLACK FINISH pack of 8 base studs
    Regular price
    $49.95
    Sale price
    $49.95
  • 17A278 N1208 MANIFOLD TUBE
    17A278 N1208 MANIFOLD TUBE
    Regular price
    $99.95
    Sale price
    $99.95
  • T1212 22B131 INLET MANIFOLD NUT
    T1212 22B131 INLET MANIFOLD NUT
    Regular price
    $99.95
    Sale price
    $99.95
  • E1200 S4 N198 16A147 S198 28B315 CRANKCASE CENTRE BOLT
    E1200 S4 N198 16A147 S198 28B315 CRANKCASE CENTRE BOLT
    Regular price
    $41.99
    Sale price
    $41.99
  • 16A62 BASE STUDS EARLY PLATED(4) can also use 1721(8)
    16A62 BASE STUDS EARLY PLATED(4)  can also use 1721(8)
    Regular price
    $64.95
    Sale price
    $64.95
  • 20B418 N470P PERFORATED VALVE SLEEVE (4)
    20B418 N470P PERFORATED VALVE SLEEVE (4)
    Regular price
    $45.36
    Sale price
    $45.36
  • 901 Engine mount bolt with spacers nuts washers 101
    901 Engine mount bolt with spacers nuts washers 101
    Regular price
    $99.95
    Sale price
    $99.95
  • 1209 OIL PUMP SCREW SET 101 1928-31
    1209 OIL PUMP SCREW SET 101 1928-31
    Regular price
    $16.95
    Sale price
    $16.95
  • 40171 NICKEL PLATED GAS LINE
    40171 NICKEL PLATED GAS LINE
    Regular price
    $329.95
    Sale price
    $329.95
  • D10485 CARB CONNECTION TUBE ELBOW
    D10485 CARB CONNECTION TUBE ELBOW
    Regular price
    $82.45
    Sale price
    $82.45
  • 40506 FR CAMSHAFT SCOUTS
    40506 FR CAMSHAFT SCOUTS
    Regular price
    $239.02
    Sale price
    $239.02
  • G19662 N2162 CLUTCH SPRING SET 16
    G19662 N2162 CLUTCH SPRING SET 16
    Regular price
    $149.95
    Sale price
    $149.95
  • N78/N76 15/16T FRONT ENG SPROCKET PPLUS
    N78/N76 15/16T FRONT ENG SPROCKET PPLUS
    Regular price
    $399.95
    Sale price
    $399.95
  • 16A181 CLUTCH SCREW SET 4
    16A181 CLUTCH SCREW SET 4
    Regular price
    $79.95
    Sale price
    $79.95
  • N5104 CLUTCH HUB NUT
    N5104 CLUTCH HUB NUT
    Regular price
    $49.15
    Sale price
    $49.15
  • 16B50 STEEL DRIVER DISC
    16B50 STEEL DRIVER DISC
    Regular price
    $149.95
    Sale price
    $149.95
  • G19641 N2192 STEEL CLUTCH PLATE (EACH)
    G19641 N2192 STEEL CLUTCH PLATE (EACH)
    Regular price
    $49.95
    Sale price
    $49.95
  • N1690P T1690T USE 603016 CASTLE NUT
    Regular price
    $0.00
    Sale price
    $0.00
  • 20B17 TRANSMISSION LOCK NUT EARLY
    20B17 TRANSMISSION LOCK NUT EARLY
    Regular price
    $73.10
    Sale price
    $73.10
  • F269 N80 KEY
    F269 N80 KEY
    Regular price
    $7.95
    Sale price
    $7.95
  • 713-19 KICKER PINION 19 TOOTH
    713-19 KICKER PINION 19 TOOTH
    Regular price
    $204.00
    Sale price
    $204.00
  • 20B489 N459NP VALVE SPRING
    20B489 N459NP VALVE SPRING
    Regular price
    $99.95
    Sale price
    $99.95
  • 43066 JG-3566 3 THOU O/SIZE PLUNGER OIL PUMP 0.6275"od
    43066 JG-3566 3 THOU O/SIZE PLUNGER OIL PUMP 0.6275
    Regular price
    $399.95
    Sale price
    $399.95
  • 20B79 VALVE KEEPER
    20B79 VALVE KEEPER
    Regular price
    $7.66
    Sale price
    $7.66