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Mercruiser race Model 420 GM 454 V-8 1987-1989

 
Key Part Number Description Qty Req Comments Price Qty on Hand  
- 808730A92 GASKET SET SN# 0D725500 THRU 0D937011
- 13218A1 GASKET SET SN# 0A398941 THRU 0D725499
1 821948A3 COVER ASSSEMBLY, Rocker SN# 0D725770 THRU 0D937011
1 821948A1 COVER ASSEMBLY, Rocker SN# 0A398941 THRU 0D725769
2 49767 GROMMET, Rocker Cover 2
3 70086 SPRING, Filler Cap 2 SN# 0A398941 THRU 0D725769
4 811569 CAP, Oil Tank, Oil Filler 2 SN# 0D725770 THRU 0D937011
4 42336 CAP, Oil Filler 2 SN# 0A398941 THRU 0D725769
5 14902 BREATHER, Rocker Cover 2 425 Models
5 41598 BREATHER, Rocker Cover 2 420 Models
6 818991 DECAL, 420 Models 2
7 56766 STUD, (.250-20/.250-28 x 1.380) 14
8 39143 WASHER, (.253 x .625 x .0937) 14
9 20361 NUT, (.250-28) 14
10 14765 GASKET, Rocker Cover 2
11 848263 PUSH ROD, Vavle 8 Intake
11 848266 PUSH ROD, Valve 8 Exhaust
12 13024 VALVE, Exhaust - Standard 8
13 821836 STUD, Rocker Arm Valve 16 SN# 0D725500 THRU 0D937011
13 95820 STUD, Rocker Arm Valve 16 SN# 0A398941 THRU 0D725499
14 49132 GUIDE, Push Rod 8 SN# 0A398941 THRU 0D725499
14 811586 GUIDE, Push Rod 8 SN# 0D725500 THRU 0D937011
15 13455 SPRING, Valve 16
16 98598 RETAINER, Valve Spring 16
17 15832 SEAL, Valve Stem 16
18 77624 SHIM, Valve Spring (.030) 8
18 54531 SHIM, Valve Spring (.015) 16
19 96028 LOCK, Valve Stem (32 Keys)
20 69304 ARM, Valve Rocker 16
21 44481 NUT 16
22 8263632 CYLINDER HEAD KIT (.437) 425 Models
22 811529A4 CYLINDER HEAD KIT (.375) 425 Models
22 816778 CYLINDER HEAD ASSEMBLY 2 SN# 0A398941 THRU 0D725499
23 821024 VALVE, Inlet - Standard (2.250) 8
24 811546 GASKET, Cylinder Head 2 SN# 0D725500 THRU 0D937011
24 13687 GASKET, Cylinder Head 2 SN# 0A398941 THRU 0D725499
25 491061 BOLT (2.00 Inch) Cylinder Head
26 49105 BOLT, (4.125 Inch), Cylinder Head 24