4.3L CARB ALPHA-BRAVO - 1A063240 and Up - Cylinder Block Camshaft Crankshaft and Balanceshaft

Section Drawing: (Hover or click to view larger)



Ref # Part Class Part Number Description Comments Qty Note
1 0023 OEM: 525-23-818465, Sierra: 676-18-1300 BEARING SET 5 Pair (Standard) 1 [1]
1 0023 OEM: 525-23-818466 BEARING SET 5 Pair (.001 Undersize) AR  
1 0023 OEM: 525-23-818467 BEARING SET 5 Pair (.010 Undersize) AR  
1 0023 OEM: 525-23-818468 BEARING SET 5 Pair (.020 Undersize) AR  
2 0017 OEM: 525-17-43504 PIN Dowel   2 [1]
3 0429 OEM: 525-429-804911001 CRANKSHAFT   1 [1]
4 0028 OEM: 525-28-8184851 KEY Crankshaft   1 [1]
5   NSS NOT SOLD SEPARATE Cap, Crankshaft Bearing   0 [1]
6 0010 888778 SCREW Crankshaft Bearing Cap   8 [1]
7 0016 OEM: 525-16-54790 STUD Crankshaft Bearing Cap   5 [1]
8 0023 OEM: 525-23-85674 BEARING SET   1 [1]
9 0000 17341 GUIDE Lifter   6 [1]
10 0000 OEM: 525-8118441 LIFTER Roller   12 [1]
11 0431 OEM: 525-431-803186 CAMSHAFT   1 [1]
12 0017 353121 PIN Dowel   1 [1]
13 0000 OEM: 525-8243311 RETAINER Lifter Guide   2 [1]
14 0010 8243321 SCREW (.312-18 x .625)   3 [1]
15 0022 OEM: 525-22-864669 FITTING   1  
16 0087 864252 SWITCH   1  
17 0000 815425T SENDER ASSEMBLY Oil Pressure   1  
17 0000 OEM: 525-37293T SENDER ASSEMBLY Oil Pressure (Dual Station) OPT  
18 0013 OEM: 525-13-26996 LOCKWASHER (#10) Stainless Steel   1  
19 0011 OEM: 525-11-68219 NUT (#10-32) Stainless Steel   1  
20 0000 OEM: 525-8241481 BALANCED SHAFT   1 [1]
21   NSS NOT SOLD SEPARATE Bearing   1  
22 0031 OEM: 525-31-824150 BEARING Needle Rear   1 [1]
23 0000 824153 RETAINER Balance Shaft   1 [1]
24 0010 OEM: 525-10-845943 SCREW (.250-20 x .500)   2 [1]
25 0043 OEM: 525-43-8241511 GEAR KIT Balance Shaft   1 [1]
26 0010 824152 SCREW   1 [1]
27 0010 824329 SCREW (.312-18 x .750)   3 [1]
28 0000 OEM: 525-824333 RETAINER Camshaft   1 [1]
29 0010 OEM: 525-10-824334 SCREW (.250-20 x .500)   2 [1]
30 0035 OEM: 530-883702Q, Sierra: 676-18-7879-1 FILTER Oil (Quicksilver Brand) 1 [2]
30 0035 OEM: 525-35-883702K, Sierra: 676-18-7879-1 FILTER Oil (Mercury Precision Parts Brand) 1 [2]
31 0000 11972 ADAPTER   1 [1]
32 0022 OEM: 525-22-878050 VALVE Bypass   1 [1]
- 0092 809825 RTV SILICONE (3 Ounce Tube) Metallic Blue Where Applicable   1  
- 0092 342271 SEALING COMPOUND (16 Ounce) Where Applicable   1  
- 0000 879150A31 LONG BLOCK (4.3L)   1 [3]

PART NOTES:

[1] - Component of Long Block Assembly -Long Block Part Numbers Listed on Service/Support Material Page


[2] - Alternate part numbers:

41815Service Part

883702KMPP

883702QQS


[3] - Alternate part numbers:

879150A31QS

879150R31Reman

8M0150280Reman