S&S Cycle Replacement Cylinder Heads for 1984-1999 Harley-Davidson Evolution Engines and 1986-2003 Sportster Motorcycles User Manual
Page 10
Abbreviation "NS" means part is not shown in diagram.
1.
Cylinder head - 1984-99 big twin
2.
Valve
Intake
2.000" diameter . . . . . . . . . . . . . . . . . . . . . . . . . .90-2000
2.000" + .085" diameter . . . . . . . . . . . . . . . . . . .90-2004
Exhaust
1.605" diameter . . . . . . . . . . . . . . . . . . . . . . . . . . .90-2001
1.605" +.085" diameter . . . . . . . . . . . . . . . . . . . .90-2005
3.
Valve seat - All
Intake - 2.000" diameter . . . . . . . . . . . . . . . . . . . . . . .90-2002
Exhaust - 1.605" diameter . . . . . . . . . . . . . . . . . . . . .90-2003
4.
Valve guide - intake or exhaust
All
Standard
(Harley-Davidson
®
#18112-92)
. . . . . . . . . . . . . . .90-2210
+.001"
(H-D
®
#18130-83C)
. . . . . . . . . . . . . . . . . . . . . . . .90-2211
+.002"
(H-D
®
#18133-83A)
. . . . . . . . . . . . . . . . . . . . . . . .90-2212
+.003"
(H-D
®
#18131-83C)
. . . . . . . . . . . . . . . . . . . . . . . . .90-2213
+.030" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90-2219
5. Valve spring shim - 1984-up
.015" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90-2086
.030" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90-2087
6.
Valve guide seal - intake or exhaust
(H-D
®
#18001-83A) (5 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . .90-2195
7.
Valve spring kit, 1984-up
.640" lift - steel top collars . . . . . . . . . . . . . . . . . . . . .90-2077
.640" lift - titanium top collars . . . . . . . . . . . . . . . . .90-2078
8.
Keeper, valve spring, intake/exhaust
Two required per valve. . . . . . . . . . . . . . . . . . . . . . . .90-2094
9.
Head mount bolt -
3
⁄
8
"-16 x 1
1
⁄
4
"
(H-D
®
#4716)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-0168
10. Flat washer -
3
⁄
8
"
(H-D
®
#6019)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-7051
11. Head bolt assembly -
Includes head bolt washer.
12. Head bolt washer
.100"
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-7096
.250"
(H-D
®
#6016) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . .50-7095
13. Exhaust port stud
(H-D
®
#16715-83) (5 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . .50-1028
14. Lock washer -
5
⁄
16
"
(H-D
®
#7041)
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-7077
15. Nut, HH -
5
⁄
16
"-24
(H-D
®
#7833)
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-5048
16. Exhaust pipe gasket -
(H-D
®
#65324-83) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . .93-1072
17. Thread conversion insert
1
⁄
2
"-13 to
5
⁄
16
"-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-8151
18. Intake manifold -
19. Screw, manifold mounting
SH -
5
⁄
16
"-18 x 1"
(H-D
®
#3201WA) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . .50-0145
HH -
5
⁄
16
"-18 x 1"
(H-D
®
#3987,4017)
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-0155
20. Washer, flat -
5
⁄
16
"
(H-D
®
#6016,6702)
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-7069
21. Flange, manifold mounting
Front
(H-D
®
#27009-86A)
. . . . . . . . . . . . . . . . . . . . . . . . .16-0232
Rear
(H-D
®
#27010-86A)
. . . . . . . . . . . . . . . . . . . . . . . . . .16-0233
22. O-ring, manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-0243
23. Head gasket,
3
1
⁄
2
" Bore
.045" thick (No O-rings required.)
(H-D
®
#16770-84C) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . .93-1024
.0625" thick
(Includes gasket & dowel O-rings.)
(H-D
®
#16770-84B) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . .93-1051
3
5
⁄
8
" Bore
.045" thick (No O-rings required.)
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93-1052
.062" thick (No O-rings required.)
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93-1053
4" Bore
.045" thick
(10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . .93-1071
24. O-ring, head gasket oil return -
.062" diameter
(For use on O-ring style dowel 93-1000.)
(H-D
®
#11105) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . .50-8078
.070" diameter (For .045" gasket
w/stock style dowel 50-8023.)
(H-D
®
#26432-76X) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . .50-8102
.0825" diameter (For .0625" gasket
w/stock style dowel 50-8023.)
(H-D
®
#26432-76A) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . .50-8108
25. Alignment dowel
(H-D
®
#16573-83) (10 Pack)
. . . . . . . . . . . . . . . . . . . . . . . .50-8109
Dowel pin -
1
⁄
4
" dia. x
1
⁄
2
"- 4" bore
(5 Pack)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-8105
26. Rocker cover gasket kits
1984-up big twin S&S billet rocker cover - rubber N/S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90-4049
1984-up big twin S&S cast rocker cover - rubber N/S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90-4091
1984-'91 big twin - cork
(H-D
®
#17038-90).
. . . . . . . . . .90-4007
1984-'91 big twin
(H-D
®
#17038-90)
. . . . . . . . . . . . . . . .90-4046
1992- '99 big twin - cork
(H-D
®
#17042-92A)
. . . . . . . .90-4027
1992- '99 big twin - rubber
(H-D
®
#17042-92A)
. . . . . . .90-4047
1986-'90 Sportster
®
- cork. . . . . . . . . . . . . . . . . . . . . .90-4028
1991- up Sportster
®
- cork
(H-D
®
#17039-90A)
. . . . . . . .90-4029
10
All reference to Harley-Davidson
®
part numbers is for identification purposes only. We in no way are implying that any of S&S
®
Cycle’s
products are original equipment parts or that they are equivalent to the Harley-Davidson
®
part number shown.