A Plus Blocks 1275 Engines with 12H Engine No
Label Part No Description Quantity Comments
1 BHM1137 Con rod set 1 N.L.A
2 LFH10006 Con rod bolt, was 12G1300 8
2 C-STR289 High strength rod bolt set 1
3 13H5872 Con rod nut 8
4 CAM6232 Crankshaft (rolled radius journals stamped [LINK]CAM6232[/LINK]) 1 Was BHM1243
5 6K836 Crankshaft keyway 1
6 VP91306-00 Con rod bearing, was 8G2553 (Mahle) 1 Std/10/20 only.
6 AEB91306-00 Con rod bearing , ACL race quality 1 Std/10/20/30/40
6 VC1003-00 Connecting rod bearings Mahle race 1 Std and 10 only
7 VP91886-00 Mains bearing, was BHM1574. (Mahle) 1 Std/10/20 only.
7 AEM91886-00 Mains bearing ACL type 1 Std/10/20
7 VM1005-00 Main bearings set Mahle race 1 Std/10 only
8 AEW2136 Thrust washer set, was VPW41/BHM1293 1 Std/3 thou oversize
8 VPW41 Thrust washer set, Vandervell 1 Std/30 thou oversize
9 DAM8890 Primary gear 29 teeth (A plus) standard 1 12H706AA, 23201 on
9 DAM9373 Primary gear 30 teeth (A plus) economy 1 N.L.A
10 DAM8889 Bush front 1
11 22G109 Bush rear 1
12 DAM6490 Primary gear shim 2.84-2.89mm (.112-114”) 1 These shims are used to give the correct end float of 3-6 thou on the primary gear check [LINK]22A319[/LINK] and [LINK]88G549[/LINK] for wear.
12 DAM6486 Primary gear shim 2.89-2.94mm (.114-116”) 1 These shims are used to give the correct end float of 3-6 thou on the primary gear check [LINK]22A319[/LINK] and [LINK]88G549[/LINK] for wear.
12 DAM6487 Primary gear shim 2.94-2.99mm (.116-118”) 1 These shims are used to give the correct end float of 3-6 thou on the primary gear check [LINK]22A319[/LINK] and [LINK]88G549[/LINK] for wear.
12 DAM6488 Primary gear shim 2.99-3.04mm (.118-120”) 1 These shims are used to give the correct end float of 3-6 thou on the primary gear check [LINK]22A319[/LINK] and [LINK]88G549[/LINK] for wear.
12 DAM6489 Primary gear shim 3.04-3.09mm (.120-122”) 1 These shims are used to give the correct end float of 3-6 thou on the primary gear check [LINK]22A319[/LINK] and [LINK]88G549[/LINK] for wear.
12 DAM6492 Primary gear shim 3.09-3.14mm (0.122-124”) 1 These shims are used to give the correct end float of 3-6 thou on the primary gear check [LINK]22A319[/LINK] and [LINK]88G549[/LINK] for wear.
13 22A319 Thrust washer U clip 1
14 88G549 Backing ring 1
15 12G2983 Camshaft, slot drive 1 N.L.A
16 DAM2821 Plastic clutch oil seal protector 1
17 AHU2379 Camshaft retainer plate 1
18 6K629 Camshaft retainer nut 1
19 2A759 Camshaft locktab 1
20 12G4337 Camshaft gear simplex 1
21 8G725 Crankshaft gear simplex 1
22 3H2127 Timing chain simplex 1
23 6K628 Washer to shim crank gear 1 As required
24 12G2621 Tensioner pad 1
25 12G2628 Tensioner mounting plate 1
26 12G2629 Tensioner pivot pin 1
27 CAM4700B Front plate gasket - For gasket sets see page 28 1 [LINK]GUG705554GM[/LINK] for genuine
29 SH605051 Screw - plate to crankcase 2
30 GFK1125 Washer, spring was GHF332 2
31 53K2016 Screw, front plate to mains cap 2 Simplex
32 GHF321 Washer,shakeproof was WF600041 2
33 WKN505 Keyway camshaft 1
34 12G3560 Distributor drive spindle 1 N.L.A
35 TAM1671 Distributor retaining clip was 613857A 1
36 TAM1706 Screw for retainer clip, was CAM6105 3/8” UNF bolt 1” thread 1 N.L.A
37 2A13 Cam follower less oil hole 8 Alternative to [LINK]AEG584[/LINK]
37 AEG584 Cam follower with oil hole 8 Alternative to [LINK]2A13[/LINK]
38 AEG314 Push rod 8 N.L.A - See [LINK]C-AEG582[/LINK]
38 AEG314MS Push rod 8 See [LINK]C-AEG582[/LINK]
*Vandervell is now owned by Mahle