what year is my 5.3
02-24-2014, 10:27 PM
#1
On The Tree
Thread Starter
iTrader: (14)
Join Date: Jan 2007
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
what year is my 5.3 I'm trying to order cam/main and rod bearings for my engine... but they make them for different years of 5.3s the guy i bought said it came out of an 05. Also said alot of other **** that is not true. Hence is why i'm doing the rebuild. So i have The casting numbers which is 125678392. there is also another stamp infront of the block where the waterpump is located, G06 , also where the passenger head is located (on block) 02f03. has the 706 heads... also numbers below the 706 casting is 5018X2220924... Thanks in advance...
02-25-2014, 09:01 AM
#2
TECH Fanatic
The main and rod bearings are the same across all gen 3 motors.
The cam bearings do have some variations, however.
Here are some ways to tell if you have a mid-04+ Gen III 5.3 engine:
1. LS2-style connecting rods.
2. LS2-style lifter trays.
3. Low profile Oil Pressure Sending Unit.
4. Head bolts are 2 different lengths instead of 3.
The cam bearings do have some variations, however.
Here are some ways to tell if you have a mid-04+ Gen III 5.3 engine:
1. LS2-style connecting rods.
2. LS2-style lifter trays.
3. Low profile Oil Pressure Sending Unit.
4. Head bolts are 2 different lengths instead of 3.
