Cylinder Head 850CC, 998CC & 1100CC Pre 'A' Plus to 1980

Mini Catalog Page 2-21
No. Part No. Description Qty Remarks
1 12A1455  Cylinder head (12A1456 head casting) 1 850cc and 998cc  
1 28G193  Cylinder head (12G202 head casting) 1 1100cc  
2 CHS2515  Stud, water elbow outlet 3  
3 51K885  Stud, rocker cover 2  
4 51K1473  Stud, rocker cover short 2 2.6875" (68mm long)  
5 53K487  Stud, manifold 6  
6 53K402  Stud, heater valve 2  
7 12G1111  Valve guide - was 2A608 8 850cc and 998cc  
7 12A186  Valve guide 8 1100cc  
8 6K808  Oil hole plug 1 1100cc  
8 2K1345  Oil hole plug 1 850cc and 998cc  
9 2A180  Heater tap blanking plate 1 When required  
10 88G221  Heater take off gasket 1  
11 TAM2068  Valve seat insert exhaust 4 lead free  
11 TAM2152  Valve seat insert inlet 4 lead free  
12 2A877  Inlet valve large collet groove 4 850cc and 998cc  
12 CAM6391  Inlet valve small collet groove 1.094" 4 850cc and 998cc  
12 12G3036  Inlet valve small collet groove 4 1098cc  
12 AEA574  Inlet valve large collet groove 1.15" 4 1098cc  
12 AEA434  Exhaust valve large collet groove 1.0" 4  
12 12A1987  Exhaust valve small collet groove 4  
13 AEA311  Valve spring 8  
14 2A879  Valve oil seal 8  
15 88G616  Top cap for large collet groove 8  
15 88G617  Top cap for small collet groove 8  
16 2A11  Valve cotter for 88G616 large collet groove 8pr NLA  
16 88G459  Valve cotter for 88G617 small collet groove 8pr  
17 2A12  Circlip for valve cotters 8 No longer required  
18 12A1950  Rocker shaft 1  
19 12G1926  Rocker shaft post with oil hole 3  
20 12G1927  Rocker shaft post tapped 1  
21 2A515  Rocker post locking plate 1 NLA use 2A259  
22 2A258  Locating plug 1  
23 6K556  Rocker spacer spring 3  
24 2A964  Rocker pressed steel, original NLA Use 12G1221 or CAM289  
25 12G1221  Rocker forged 8 Alternative  
26 2A21  Bush 8 Not for CAM289  
27 CAM289  Rocker sintered non bush type 8  
28 AEG167  Rocker screw 8 Thread size 5/16 UNF  
28 12A1215  Rocker screw for 2A964 8 NLA  
29 6K654  Adjuster nut 8 7/16 AF wrench size  
29 NT605061  Adjuster nut for 12G1221 and CAM289 8 1/2 AF wrench size  
30 51K1193  Cylinder head nut 9  
31 GHF302  Head nut washer 8  
32 GUG702506HG Cylinder head gasket, 1