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OUTBOARD MARINE 8
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Engine Years CC Bore X Stroke Cyl Models
305 Chevrolet OHV 5000 cc 3.74X 3.48 8 cyl
307 Chevrolet OHV 5028 cc 3.88X 3.25 8 cyl
350 Chevrolet OHV 5700 cc 4.00X 3.48 8 cyl

King Set No
Part No
Qty
Position
Crankshaft
Diameter
Housing
Diameter
Bearing
Length
Max Wall Thickness
CR 807SI
STD/001/002/010/020/030/040/060/010
ACL:8B663 ~ CLE:CB- 663AL(8) ~ FMO:8-2555AP ~ GLA:B8102LC ~ VAN:VPR91324 ~
C 807
8 Pairs

2.0990/ 2.1000
53.315/ 53.340
2.2247/ 2.2252
56.507/ 56.520
0.8420
21.39
0.0621
1.577
CR 865SI
STD/010/020/030/040
Same as CR 807SI but with Housing bore resized .002" larger
ACL:8B663AO/S2 FMO:8-2555AX2
C 865
8 Pairs

2.0990/ 2.1000
53.315/ 53.340
2.2267/ 2.2272
56.558/ 56.571
0.8420
21.39
0.0631
1.603
CS 507BB
STD
ACL:5C290 CLE:SH- 290S DUR:CH-8 FMO:1235M VAN:VPC979

CS 507HP
High Performance
DUR:CHP-8

CS 507HPT
High Performance, coated
DUR:CHP-8T

MB 557SI
STD/001/002/010/020/030/040/010X/ST
ACL:5M909 ~ CLE:MS- 909AL ~ FMO:4663M ~ GLA:M5338LC ~ VAN:VPM91338 ~
M 557U
M 557L

F 557U
F 557L
4 Pairs

1 Pair
1-2-3-4

5

2.4484/ 2.4493
62.189/ 62.212

2.4479/ 2.4488
62.177/ 62.200
2.6406/ 2.6415
67.071/ 67.094

2.6406/ 2.6415
67.071/ 67.094
0.8070
20.50

1.7180
43.64
0.0955
2.426

0.0955
2.426
MB 557XP
STD/001/010/011/020/021/030/010X/02
XTREME Performance Grooved Upper Halves Plain Lower Halves Fl STD. only.
ACL:5M909H CLE:MS-909H FMO:139M
M 557U/PR
M 557L/PR

F 557U/PR
F 557L/PR
4 Pairs

1 Pair
1-2-3-4

5

2.4483/ 2.4493
62.187/ 62.212

2.4478/ 2.4488
62.174/ 62.200
2.6406/ 2.6416
67.071/ 67.097

2.6406/ 2.6416
67.071/ 67.097
0.7675
19.49

1.7180
43.64
0.0955
2.426

0.0955
2.426
MB5183AM
010/020/030
superseded by MB5183SI
Same as MB 557AM but with flange oversize .010". Flange length: 43.89 mm
ACL:5M1744 CLE:MS-1744 FMO:7329M

MB5184AM
010/020/030
superseded by MB5184SI
Same as MB 557AM but with flange oversize .020." Flange length: 44.15 mm.
ACL:5M1626 CLE:MS-1626 FMO:6688M10

MB5185AM
010/020/030
superseded by MB5185SI
Same as MB 557AM but with flange oversize .030". Flange length: 44.44 mm

MB5271SI
010
Same as MB 557SI but with flange oversize .020" and .020" oversize housing.
M5570U
M5570L

F5271U
F5271L
4 Pairs

1 Pair
1-2-3-4

5

2.4484/ 2.4493
62.189/ 62.212

2.4479/ 2.4488
62.177/ 62.200
2.6606/ 2.6615
67.579/ 67.602

2.6606/ 2.6615
67.579/ 67.602
0.8070
20.50

1.7180
43.64
0.1055
2.680

0.1055
2.680
MB5570SI
010
This set is .020" oversize housing of MB 557SI.
M5570U
M5570L

F5570U
F5570L
4 Pairs

1 Pair
1-2-3-4

5

2.4484/ 2.4493
62.189/ 62.212

2.4479/ 2.4488
62.177/ 62.200
2.6606/ 2.6615
67.579/ 67.602

2.6606/ 2.6615
67.579/ 67.602
0.8070
20.50

1.7180
43.64
0.1055
2.680

0.1055
2.680

	OUTBOARD MARINE				8
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Engine	Years	CC	Bore X Stroke	Cyl	Models
305 Chevrolet OHV		5000 cc	3.74X 3.48	8 cyl
307 Chevrolet OHV		5028 cc	3.88X 3.25	8 cyl
350 Chevrolet OHV		5700 cc	4.00X 3.48	8 cyl

King Set No	Part No	Qty	Position	Crankshaft Diameter	Housing Diameter	Bearing Length	Max Wall Thickness
CR 807SI STD/001/002/010/020/030/040/060/010 ACL:8B663 ~ CLE:CB- 663AL(8) ~ FMO:8-2555AP ~ GLA:B8102LC ~ VAN:VPR91324 ~	C 807	8 Pairs		2.0990/ 2.1000 53.315/ 53.340	2.2247/ 2.2252 56.507/ 56.520	0.8420 21.39	0.0621 1.577
CR 865SI STD/010/020/030/040 Same as CR 807SI but with Housing bore resized .002" larger ACL:8B663AO/S2 FMO:8-2555AX2	C 865	8 Pairs		2.0990/ 2.1000 53.315/ 53.340	2.2267/ 2.2272 56.558/ 56.571	0.8420 21.39	0.0631 1.603
CS 507BB STD ACL:5C290 CLE:SH- 290S DUR:CH-8 FMO:1235M VAN:VPC979
CS 507HP High Performance DUR:CHP-8
CS 507HPT High Performance, coated DUR:CHP-8T
MB 557SI STD/001/002/010/020/030/040/010X/ST ACL:5M909 ~ CLE:MS- 909AL ~ FMO:4663M ~ GLA:M5338LC ~ VAN:VPM91338 ~	M 557U M 557L F 557U F 557L	4 Pairs 1 Pair	1-2-3-4 5	2.4484/ 2.4493 62.189/ 62.212 2.4479/ 2.4488 62.177/ 62.200	2.6406/ 2.6415 67.071/ 67.094 2.6406/ 2.6415 67.071/ 67.094	0.8070 20.50 1.7180 43.64	0.0955 2.426 0.0955 2.426
MB 557XP STD/001/010/011/020/021/030/010X/02 XTREME Performance Grooved Upper Halves Plain Lower Halves Fl STD. only. ACL:5M909H CLE:MS-909H FMO:139M	M 557U/PR M 557L/PR F 557U/PR F 557L/PR	4 Pairs 1 Pair	1-2-3-4 5	2.4483/ 2.4493 62.187/ 62.212 2.4478/ 2.4488 62.174/ 62.200	2.6406/ 2.6416 67.071/ 67.097 2.6406/ 2.6416 67.071/ 67.097	0.7675 19.49 1.7180 43.64	0.0955 2.426 0.0955 2.426
MB5183AM 010/020/030 superseded by MB5183SI Same as MB 557AM but with flange oversize .010". Flange length: 43.89 mm ACL:5M1744 CLE:MS-1744 FMO:7329M
MB5184AM 010/020/030 superseded by MB5184SI Same as MB 557AM but with flange oversize .020." Flange length: 44.15 mm. ACL:5M1626 CLE:MS-1626 FMO:6688M10
MB5185AM 010/020/030 superseded by MB5185SI Same as MB 557AM but with flange oversize .030". Flange length: 44.44 mm
MB5271SI 010 Same as MB 557SI but with flange oversize .020" and .020" oversize housing.	M5570U M5570L F5271U F5271L	4 Pairs 1 Pair	1-2-3-4 5	2.4484/ 2.4493 62.189/ 62.212 2.4479/ 2.4488 62.177/ 62.200	2.6606/ 2.6615 67.579/ 67.602 2.6606/ 2.6615 67.579/ 67.602	0.8070 20.50 1.7180 43.64	0.1055 2.680 0.1055 2.680
MB5570SI 010 This set is .020" oversize housing of MB 557SI.	M5570U M5570L F5570U F5570L	4 Pairs 1 Pair	1-2-3-4 5	2.4484/ 2.4493 62.189/ 62.212 2.4479/ 2.4488 62.177/ 62.200	2.6606/ 2.6615 67.579/ 67.602 2.6606/ 2.6615 67.579/ 67.602	0.8070 20.50 1.7180 43.64	0.1055 2.680 0.1055 2.680