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OSCO MARINE 1
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Engine Years CC Bore X Stroke Cyl Models
300 Ford OHV 4900 cc 4.00X 3.98 6 cyl

King Set No
Part No
Qty
Position
Crankshaft
Diameter
Housing
Diameter
Bearing
Length
Max Wall Thickness
CR 640SI
STD/001/010/020/030/040/060
ACL:6B699 ~ CLE:CB- 699AL(6) ~ FMO:6-3150CPA ~ GLA:B6455SA ~ VAN:VPR91273 ~
C 640U
C 640L
6 Pairs

2.1228/ 2.1236
53.919/ 53.939
2.2750/ 2.2758
57.785/ 57.805
0.8000
20.32
0.0756
1.920
CR6804SI
STD/010/020/030/040
same as CR 640SI but with Housing bore resized .002" larger
CLE:CB-1799P(6)
C6804U
C6804L
6 Pairs

2.1228/ 2.1236
53.919/ 53.939
2.2770/ 2.2778
57.836/ 57.856
0.8000
20.32
0.0760
1.930
CS 419BB
Thru 5/14/85
ACL:4C567 CLE:SH- 567S DUR:F-23A FMO:1450M VAN:VPC998
S 419
4
1-2-3-4

2.0170/ 2.0180
51.232/ 51.257
2.1440/ 2.1450
54.458/ 54.483
0.8650
21.97
0.0624
1.585
CS 427BB
Under Development
From 5/15/85
ACL:4C1254 CLE:SH-1254S DUR:F-49 FMO:1781M
S 427/1

S 427/2
2

2
1,4

2-3

2.0170/ 2.0180
51.232/ 51.257

2.0170/ 2.0180
51.232/ 51.257
2.1580/ 2.1600
54.813/ 54.864

2.1440/ 2.1450
54.458/ 54.483
0.8650
21.97

0.8650
21.97
0.0695
1.765

0.0624
1.585
CS4410BB
STD
Under Development
For 1965/5/85 eng. only. (Special oil control set w/ O.D. groove).
DUR:F-23B
S4410
4
1-2-3-4

0.0000/ 0.0000
0.000/ 0.000
2.1440/ 2.1450
54.458/ 54.483
0.8600
21.84
0.0620
1.575
MB 529HP
STD/001/009/010/010/011/020/020/021
High Performance. Grooved Upper Halves Plain Lower Halves
ACL:5M590H~ CLE:MS-590H~ FMO:129M~
M 529U/PR
M 529L/PRH

F 529U/PR
F 529L/PRH
4 Pairs

1 Pair
1-2-4-5

3

2.2482/ 2.2490
57.104/ 57.125

2.2482/ 2.2490
57.104/ 57.125
2.4412/ 2.4420
62.006/ 62.027

2.4412/ 2.4420
62.006/ 62.027
0.8900
22.61

1.1330
28.78
0.0957
2.431

0.0957
2.431
MB 760SI
STD/001/010/020/030/040/060
ACL:7M979 ~ CLE:MS-979P ~ FMO:4916M ~ GLA:M7369SA ~ VAN:VPM91274 ~
M 760U
M 760L

F 760U
F 760L
6 Pairs

1 Pair
1-2-3-4-6-7

5

2.3982/ 2.3990
60.914/ 60.935

2.3982/ 2.3990
60.914/ 60.935
2.5902/ 2.5910
65.791/ 65.811

2.5902/ 2.5910
65.791/ 65.811
0.9500
24.13

1.1950
30.35
0.0955
2.426

0.0955
2.426
MB7725AM
Same as MB 760AM, but with flange oversize .010". Flange length: 30.60 mm.
ACL:7M2193P

MB7726AM
Same as MB 760AM, but with flange oversize .020". Flange length: 30.85 mm.
FMO:7153M10

MB7727AM
Same as MB 760AM, but with flange oversize .030". Flange length: 31.10 mm.

	OSCO MARINE				1
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Engine	Years	CC	Bore X Stroke	Cyl	Models
300 Ford OHV		4900 cc	4.00X 3.98	6 cyl

King Set No	Part No	Qty	Position	Crankshaft Diameter	Housing Diameter	Bearing Length	Max Wall Thickness
CR 640SI STD/001/010/020/030/040/060 ACL:6B699 ~ CLE:CB- 699AL(6) ~ FMO:6-3150CPA ~ GLA:B6455SA ~ VAN:VPR91273 ~	C 640U C 640L	6 Pairs		2.1228/ 2.1236 53.919/ 53.939	2.2750/ 2.2758 57.785/ 57.805	0.8000 20.32	0.0756 1.920
CR6804SI STD/010/020/030/040 same as CR 640SI but with Housing bore resized .002" larger CLE:CB-1799P(6)	C6804U C6804L	6 Pairs		2.1228/ 2.1236 53.919/ 53.939	2.2770/ 2.2778 57.836/ 57.856	0.8000 20.32	0.0760 1.930
CS 419BB Thru 5/14/85 ACL:4C567 CLE:SH- 567S DUR:F-23A FMO:1450M VAN:VPC998	S 419	4	1-2-3-4	2.0170/ 2.0180 51.232/ 51.257	2.1440/ 2.1450 54.458/ 54.483	0.8650 21.97	0.0624 1.585
CS 427BB Under Development From 5/15/85 ACL:4C1254 CLE:SH-1254S DUR:F-49 FMO:1781M	S 427/1 S 427/2	2 2	1,4 2-3	2.0170/ 2.0180 51.232/ 51.257 2.0170/ 2.0180 51.232/ 51.257	2.1580/ 2.1600 54.813/ 54.864 2.1440/ 2.1450 54.458/ 54.483	0.8650 21.97 0.8650 21.97	0.0695 1.765 0.0624 1.585
CS4410BB STD Under Development For 1965/5/85 eng. only. (Special oil control set w/ O.D. groove). DUR:F-23B	S4410	4	1-2-3-4	0.0000/ 0.0000 0.000/ 0.000	2.1440/ 2.1450 54.458/ 54.483	0.8600 21.84	0.0620 1.575
MB 529HP STD/001/009/010/010/011/020/020/021 High Performance. Grooved Upper Halves Plain Lower Halves ACL:5M590H~ CLE:MS-590H~ FMO:129M~	M 529U/PR M 529L/PRH F 529U/PR F 529L/PRH	4 Pairs 1 Pair	1-2-4-5 3	2.2482/ 2.2490 57.104/ 57.125 2.2482/ 2.2490 57.104/ 57.125	2.4412/ 2.4420 62.006/ 62.027 2.4412/ 2.4420 62.006/ 62.027	0.8900 22.61 1.1330 28.78	0.0957 2.431 0.0957 2.431
MB 760SI STD/001/010/020/030/040/060 ACL:7M979 ~ CLE:MS-979P ~ FMO:4916M ~ GLA:M7369SA ~ VAN:VPM91274 ~	M 760U M 760L F 760U F 760L	6 Pairs 1 Pair	1-2-3-4-6-7 5	2.3982/ 2.3990 60.914/ 60.935 2.3982/ 2.3990 60.914/ 60.935	2.5902/ 2.5910 65.791/ 65.811 2.5902/ 2.5910 65.791/ 65.811	0.9500 24.13 1.1950 30.35	0.0955 2.426 0.0955 2.426
MB7725AM Same as MB 760AM, but with flange oversize .010". Flange length: 30.60 mm. ACL:7M2193P
MB7726AM Same as MB 760AM, but with flange oversize .020". Flange length: 30.85 mm. FMO:7153M10
MB7727AM Same as MB 760AM, but with flange oversize .030". Flange length: 31.10 mm.