What number should I see in my vin number for the 4.3 or the 2.8
 

question for everyone how do i figure out what motor i have by looking at the vin number?

Really..... It would be much easier to just look under the hood lol. Usually the 4 through 8 characters in the VIN tell you that type of info. For instance my 94 Jimmy has a W as the 8th character which identifies it as a Vortec 4.3L Character 4,5,6 usually tell you Body style and trim and **** like that.

Not everybody can tell a 90 degree from a 60 degree. Most of us that can already know how to tell by looking at the vin anyways. Most of the time when I stop to look at a first gen I'll look at the vin to find out if its got a 4.3 and I need to keep looking (unless I'm looking for a v8 swap) or a 2.8 and a good daily driver. Anyways

You are wanting to look at the 8th digit in the vin

1982
a-1.9
b-2.8

1983
a-1.9
b-2.8
y-2.0

1984
a-1.9
b-2.8
s-2.2 diesel
y-2.0

1985
a-1.9
b-2.8
e-2.5
s-2.2 diesel

1986-7
a-2.5
r-2.8

1988-90
a-2.5
r-2.8
z-4.3

1991
a-2.5
e-2.5
r-2.8
z-4.3

1992-93
a-2.5
r-2.8
w-4.3
z-4.3

1994-95
4-2.2
w-4.3
z-4.3

1996-99
4-2.2
w-4.3
x-4.3

2000
4-2.2
5-2.2
w-4.3

2001-02
5-2.2
w-4.3

2003
4-2.2
x-4.3

2004
x-4.3

NIce info NEO