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GENERAL MOTORS PRODUCTS 39
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Engine Years CC Bore X Stroke Cyl Models
204 Buick OHV 1989-93 3300 cc 3.70X 3.16 6 cyl Achieva, Century, Cutlass Ciera, Grand Am, Skylark, Somerset
231 Buick OHV, Vin "C", "L", Series I 1988-95 3800 cc 3.80X 3.40 6 cyl Bonneville, Century, Electra, Firebird, Grand Prix, LeSabre, Lumina, Lumina APV, Ninety Eight, Park Avenue, Reatta, Regal, Toronado, Transport
231 Buick OHV, Vin "K", "2" Series II 1995-09 3800 cc 3.80X 3.40 6 cyl Bonneville, Camaro, Firebird, Grand Prix, Impala, LeSabre, Lumina, Lumina APV, Monte Carlo, Park Avenue, Regal, Regency, Riviera, Silhouette, Toronado,Transport
231 Buick Supercharged OHV, Vin "1" , "4" 1991-07 3800 cc 3.80X 3.40 6 cyl Bonneville, Grand Prix, Impala, Monte Carlo, Ninety Eight, Park Avenue, Regal, Riviera

King Set No
Part No
Qty
Position
Crankshaft
Diameter
Housing
Diameter
Bearing
Length
Max Wall Thickness
CR6616AM
STD/001/010/020/030/040/060
superseded by CR6616SI
For 1988-90 engines only except 231 Type L.
ACL:6B1228 CLE:CB-1228AL(6) FMO:6-3755AP VAN:VPR91818
C6616
6 Pairs

2.2487/ 2.2495
57.117/ 57.137
2.3740/ 2.3745
60.300/ 60.312
0.6590
16.74
0.0619
1.572
CR6664AM
STD/010/020/030/040
superseded by CR6664SI
For 1990-09 231Vin "K", "L", "1" and 1991-93 204 and 231 Vin "C" only.
ACL:6B1443 CLE:CB-1443AL(6) FMO:6-3755APA
C6664
6 Pairs

2.2487/ 2.2495
57.117/ 57.137
2.3738/ 2.3745
60.295/ 60.312
0.7210
18.31
0.0618
1.570
CR6684AM
This set is .002" O/S Hous. of CR6616AM
ACL:6B1228PO/S2 CLE:CB-1800P(6) FMO:6-3755

CR6824SI
STD/010/020/030/040
This set is .002" O/S Hous. of CR6664SI
ACL:6B1443PO/S2
C6824
6 Pairs

2.2487/ 2.2495
57.117/ 57.137
2.3760/ 2.3770
60.350/ 60.376
0.7210
18.31
0.0618
1.570
CS 421BB
STD
ACL:4C1246S CLE:SH-1448S DUR:B-13 FMO:1755M
S 421/1

S 421/2
2

2
1,4

2-3

1.7850/ 1.7860
45.339/ 45.364

1.7850/ 1.7860
45.339/ 45.364
1.9355/ 1.9375
49.162/ 49.213

1.9155/ 1.9175
48.654/ 48.705
0.7600
19.30

0.6250
15.88
0.0743
1.887

0.0642
1.631
CS4401BB
1995-04 Vin "K"
ACL:4C1812S CLE:SH-1812S DUR: B-14

MB 443AM
STD/010/020/030/040/060
Fl STD length in all undersizes.
ACL:4M960 CLE:MS- 960AL FMO:4263M VAN:VPM91265
M 443U
M 443L

M 443U
M 443L1

F 443U
F 443L
2 Pairs

1 Pair

1 Pair
1-3

4

2

2.4990/ 2.5000
63.475/ 63.500

2.4990/ 2.5000
63.475/ 63.500

2.4990/ 2.5000
63.475/ 63.500
2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275
0.8690
22.07

0.8690
22.07

1.0580
26.87
0.0935
2.375

0.0935
2.375

0.0935
2.375
MB 480AM
STD/010/020/030/040
superseded by MB 480SI
For 1990 - 1993 231 Types L, 1 and 1991 - 93 204 & 231 Type C eng. only.This set has Fl STD length in all undersizes.
ACL:4M1822 CLE:MS-1822P FMO:7144M
M 480U
M 480L1

F 480U
F 480L

M 480U
M 480L
1 Pair

1 Pair

2 Pairs
4

2

1-3

2.4988/ 2.4998
63.470/ 63.495

2.4988/ 2.4998
63.470/ 63.495

2.4988/ 2.4998
63.470/ 63.495
2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275
0.8690
22.07

1.0580
26.87

0.8690
22.07
0.0936
2.377

0.0936
2.377

0.0936
2.377
MB 482AM
010/020/030
Same as MB 443AM, but with flange oversize .010" Flange length: 27.12 mm
ACL:4M1747P CLE:MS-1747

MB 483AM
Same as MB 443AM, but with flange oversize .020" Flange length: 27.37mm ,
ACL:4M1688 CLE:MS-1688 FMO:7150M10

MB 484AM
Same as MB 443AM, but with flange oversize .030" Flange length: 27.62mm

MB4017AM
STD/010/020/030
superseded by MB4017SI
For 1995 - 09 eng. only. Fl STD length in all undersizes.
ACL:4M2299 CLE:MS-2022P FMO:7288M
M 480U
M4017L

F 480U
F 480L

M 480U
M 480L

M 480U
M4018L
1 Pair

1 Pair

1 Pair

1 Pair
1

2

3

4

2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275
2.4880/ 2.4990
63.195/ 63.475

2.4880/ 2.4990
63.195/ 63.475

2.4880/ 2.4990
63.195/ 63.475

2.4800/ 2.4990
62.992/ 63.475
0.0869
2.21

1.0580
26.87

0.0869
2.21

0.0869
2.21
0.0937
2.380

0.0932
2.367

0.0932
2.367

0.0937
2.380
MB4018AM
010/020/030
superseded by MB4018SI
For 1994 eng. only. Fl STD length in all undersizes.
ACL:4M2309 CLE:MS-2021P FMO:7277M
M 480U
M 480L

F 480U
F 480L

M 480U
M4018L
2 Pairs

1 Pair

1 Pair
1,3

2

4

2.4988/ 2.4998
63.470/ 63.495

2.4880/ 2.4998
63.195/ 63.495

2.4880/ 2.4998
63.195/ 63.495
2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275

2.6870/ 2.6880
68.250/ 68.275
0.8690
22.07

1.0580
26.87

0.8690
22.07
0.0937
2.380

0.0932
2.367

0.0932
2.367

	GENERAL MOTORS PRODUCTS				39
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Engine	Years	CC	Bore X Stroke	Cyl	Models
204 Buick OHV	1989-93	3300 cc	3.70X 3.16	6 cyl	Achieva, Century, Cutlass Ciera, Grand Am, Skylark, Somerset
231 Buick OHV, Vin "C", "L", Series I	1988-95	3800 cc	3.80X 3.40	6 cyl	Bonneville, Century, Electra, Firebird, Grand Prix, LeSabre, Lumina, Lumina APV, Ninety Eight, Park Avenue, Reatta, Regal, Toronado, Transport
231 Buick OHV, Vin "K", "2" Series II	1995-09	3800 cc	3.80X 3.40	6 cyl	Bonneville, Camaro, Firebird, Grand Prix, Impala, LeSabre, Lumina, Lumina APV, Monte Carlo, Park Avenue, Regal, Regency, Riviera, Silhouette, Toronado,Transport
231 Buick Supercharged OHV, Vin "1" , "4"	1991-07	3800 cc	3.80X 3.40	6 cyl	Bonneville, Grand Prix, Impala, Monte Carlo, Ninety Eight, Park Avenue, Regal, Riviera

King Set No	Part No	Qty	Position	Crankshaft Diameter	Housing Diameter	Bearing Length	Max Wall Thickness
CR6616AM STD/001/010/020/030/040/060 superseded by CR6616SI For 1988-90 engines only except 231 Type L. ACL:6B1228 CLE:CB-1228AL(6) FMO:6-3755AP VAN:VPR91818	C6616	6 Pairs		2.2487/ 2.2495 57.117/ 57.137	2.3740/ 2.3745 60.300/ 60.312	0.6590 16.74	0.0619 1.572
CR6664AM STD/010/020/030/040 superseded by CR6664SI For 1990-09 231Vin "K", "L", "1" and 1991-93 204 and 231 Vin "C" only. ACL:6B1443 CLE:CB-1443AL(6) FMO:6-3755APA	C6664	6 Pairs		2.2487/ 2.2495 57.117/ 57.137	2.3738/ 2.3745 60.295/ 60.312	0.7210 18.31	0.0618 1.570
CR6684AM This set is .002" O/S Hous. of CR6616AM ACL:6B1228PO/S2 CLE:CB-1800P(6) FMO:6-3755
CR6824SI STD/010/020/030/040 This set is .002" O/S Hous. of CR6664SI ACL:6B1443PO/S2	C6824	6 Pairs		2.2487/ 2.2495 57.117/ 57.137	2.3760/ 2.3770 60.350/ 60.376	0.7210 18.31	0.0618 1.570
CS 421BB STD ACL:4C1246S CLE:SH-1448S DUR:B-13 FMO:1755M	S 421/1 S 421/2	2 2	1,4 2-3	1.7850/ 1.7860 45.339/ 45.364 1.7850/ 1.7860 45.339/ 45.364	1.9355/ 1.9375 49.162/ 49.213 1.9155/ 1.9175 48.654/ 48.705	0.7600 19.30 0.6250 15.88	0.0743 1.887 0.0642 1.631
CS4401BB 1995-04 Vin "K" ACL:4C1812S CLE:SH-1812S DUR: B-14
MB 443AM STD/010/020/030/040/060 Fl STD length in all undersizes. ACL:4M960 CLE:MS- 960AL FMO:4263M VAN:VPM91265	M 443U M 443L M 443U M 443L1 F 443U F 443L	2 Pairs 1 Pair 1 Pair	1-3 4 2	2.4990/ 2.5000 63.475/ 63.500 2.4990/ 2.5000 63.475/ 63.500 2.4990/ 2.5000 63.475/ 63.500	2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275	0.8690 22.07 0.8690 22.07 1.0580 26.87	0.0935 2.375 0.0935 2.375 0.0935 2.375
MB 480AM STD/010/020/030/040 superseded by MB 480SI For 1990 - 1993 231 Types L, 1 and 1991 - 93 204 & 231 Type C eng. only.This set has Fl STD length in all undersizes. ACL:4M1822 CLE:MS-1822P FMO:7144M	M 480U M 480L1 F 480U F 480L M 480U M 480L	1 Pair 1 Pair 2 Pairs	4 2 1-3	2.4988/ 2.4998 63.470/ 63.495 2.4988/ 2.4998 63.470/ 63.495 2.4988/ 2.4998 63.470/ 63.495	2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275	0.8690 22.07 1.0580 26.87 0.8690 22.07	0.0936 2.377 0.0936 2.377 0.0936 2.377
MB 482AM 010/020/030 Same as MB 443AM, but with flange oversize .010" Flange length: 27.12 mm ACL:4M1747P CLE:MS-1747
MB 483AM Same as MB 443AM, but with flange oversize .020" Flange length: 27.37mm , ACL:4M1688 CLE:MS-1688 FMO:7150M10
MB 484AM Same as MB 443AM, but with flange oversize .030" Flange length: 27.62mm
MB4017AM STD/010/020/030 superseded by MB4017SI For 1995 - 09 eng. only. Fl STD length in all undersizes. ACL:4M2299 CLE:MS-2022P FMO:7288M	M 480U M4017L F 480U F 480L M 480U M 480L M 480U M4018L	1 Pair 1 Pair 1 Pair 1 Pair	1 2 3 4	2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275	2.4880/ 2.4990 63.195/ 63.475 2.4880/ 2.4990 63.195/ 63.475 2.4880/ 2.4990 63.195/ 63.475 2.4800/ 2.4990 62.992/ 63.475	0.0869 2.21 1.0580 26.87 0.0869 2.21 0.0869 2.21	0.0937 2.380 0.0932 2.367 0.0932 2.367 0.0937 2.380
MB4018AM 010/020/030 superseded by MB4018SI For 1994 eng. only. Fl STD length in all undersizes. ACL:4M2309 CLE:MS-2021P FMO:7277M	M 480U M 480L F 480U F 480L M 480U M4018L	2 Pairs 1 Pair 1 Pair	1,3 2 4	2.4988/ 2.4998 63.470/ 63.495 2.4880/ 2.4998 63.195/ 63.495 2.4880/ 2.4998 63.195/ 63.495	2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275 2.6870/ 2.6880 68.250/ 68.275	0.8690 22.07 1.0580 26.87 0.8690 22.07	0.0937 2.380 0.0932 2.367 0.0932 2.367