Engine Block Stamping Identification Numbers
Label Part No Description Quantity Comments
1 12A497 998 thick deck pre A+ 1
1 WFM1026 on front 998 A Plus (with WFM1026/4 on back) 1
1 AEG131 Cooper S 970 1
1 AEG151 Cooper S 1070 1
1 AEG312 Cooper S 1275 thin deck 1
1 AEG312& AEG634 Cooper S 1275 block stamping thick deck 1
1 12G1279 1275GT / 1275 no tappet chest pre A plus 1
1 WFM1024 on back 1275-A plus 5/8" oil filter pipe thread 1
1 WFM1024 on front top 1275-A plus 11/16" oil filter pipe thread 1
1 LCF103200 1275 A plus MPI 1
StampingEngine sizePart no.
12A497 998 thick deck pre A+ -
WFM1026 on front 998 A Plus (with WFM1026/4 on back) -
AEG131 Cooper S 970 28G233
AEG151 Cooper S 1070 38G321
AEG312 Cooper S 1275 thin deck 38G354
AEG312 & AEG634 Cooper S 1275 block stamping thick deck 38G464
12G1279 1275GT/1275 no tappet chest pre A plus -
WFM1024 on back 1275-A plus 5⁄8” oil filter pipe thread -
WFM1024 on front top 1275-A plus 11⁄16” oil filter pipe thread -
LCF103200 1275 A plus MPI -