S&S Cycle

B2 CYLINDER HEADS REPLACEMENT PARTS FOR 1984–'17 BIG TWIN ENGINES (EXCEPT 2017 TOURING MODELS)

12. Washer, 5/16" 6320, 70907-07, 6016, 6702 . . . . . . . . . . . 50-7034 13. Manifold Mounting Flange Front. . . . . . . . . . . . . . . . . . . . . . 16-0247 Rear. . . . . . . . . . . . . . . . . . . . . . . 16-0248 14. O-Ring, Manifold . . . . . . . . . . . . . . . . . 16-0246-S 6 pack . . . . . . . . . . . . . . . . . . . . . . 16-0246 15. Fitting, Vent Hose, 1/8"-27 Pipe . . . . . . . . . . . . . . 50-8115 16. Exhaust Flange, 1984–Up S&S® B2 Heads . . . . . . . . 550-0223 17. Exhaust Adapter Flange For Stock Header Pipe, 1984–Up S&S® B2 Heads . . . . . . . . . . . . . . 550-0224 18. Exhaust Flange Retaining Ring, 1.759" X .062" . . . . . . 550-0226 19. Exhaust Gasket,Tapered Stainless Steel, 1984–Up bt 65324-83B, 65324-83A . . . . . . . . . . . . . . 106-5029 20. Press-In Aluminum Retaining Ring . . . . . . . . . . . . 550-0225 21. Exhaust Gasket BackingWasher 2.18" X 1.690" X.125" . . 550-0220 22. Exhaust Flange Retaining Ring, 2.125" X .078" . . . . . . 50-8159-S 23. Exhaust Gasket, Tapered, Stainless Steel . . . . . . . . . . 550-0221 24. Exhaust Gasket BackingWasher 2.18" X 1.885" X .200" . . 550-0219 25. Weld-On Exhaust Header Pip e . . . . . . . . . . . . . . 550-0222

1. Cylinder Head – (See page 191) 2. Valve

Intake, 2.200" Dia.. . . . . . . . . . . . . . . . . 90-2127 Exhaust, 1.800" Dia.. . . . . . . . . . . . . . . . 90-2128 Exhaust, 1.800" Dia,. . . . . . . . . . . . . . . . 90-2126 Intake, 2.200" Dia,. . . . . . . . . . . . . . . . . 90-2125 Std. . . . . . . . . . . . . . . . . . . . . . . 900-0553 +.030". . . . . . . . . . . . . . . . . . . . . 106-2170 5. Adaptor, Exhaust Flange. . . . . . . . . . . . . . . . 55-6022 6. Snap Ring. . . . . . . . . . . . . . . . . . . . . 106-2164 7. Flange, Exhaust, Front/Rear . . . . . . . . . . . . . . . . 55-6021 8. Washer,Lock,.332" X .583" X .078". . . . . . . . . . . 50-7032 9. Screw, Sh, 5/16" -18 X 1" 3201WA, 2708 . . . . . . . . . . . 50-0101 10. Gasket, Kit, Exhaust, B2 Heads, SA. . . . . . . . . . . . . 90-1900 Kit Includes Two Each: A: Gasket, Exhaust Pipe (each) . . . . . . . . . . . 93-1083-S 6 pack . . . . . . . . . . . . . . . . . . . . . 93-1083 B: Retaining Ring. . . . . . . . . . . . . . . . 50-8159-S 11. Screw, SH, 5/16-18 X ¾" 3275 . . . . . . . . . . . . . . . 50-0302-S 3. Valve Seat 4. Valve Guide - Cast - Intake/Exhaust

VALVE SPRING REPLACEMENT PARTS ON PAGE 222

4

15

6

12

1

11

10

10a

10b

14

13

5

3

8

7

9

2

FOR B2 HEADS USING STOCK HEADER PIPE SIZE EXHAUST SYSTEMS

FOR B2 HEADS MODIFYING OR MAKING A 2" OD HEADER PIPE SIZE EXHAUST SYSTEMS

FOR B2 HEADS USING A PRE-MADE 2" OD HEADER PIPE SIZE EXHAUST SYSTEMS

21

24

20

24

19

23

23

18

22

22

17

16

16

16

25

218 Order 608-627-1497 S&S Late Models 1999–up