What do these numbers mean?

[Marteney, Steven J.]

F is NOT for fuel-injection.  F is a 305 TPI (Tuned Port Injection).  Code 8
is the 350.  H (at least in 1987) was a CCC (computer controlled carb, 4V
Quadrajet) and code E is a TBI 305 (88 and later.)  I believe S is the 2.8L
6cyl MPI motor.

HTH, Steve

-----Original Message-----
From: Jens Larsen [mailto:Jens at jenisys.com]
Sent: Monday, July 16, 2001 4:53 PM
To: gmecm at diy-efi.org
Subject: What do these numbers mean?


I have a 305 TPI from a 1986 TransAm. The then engine number is:  2GN207358,
but
I never saw the car the engine was from so I had no VIN.  I called Pontiac,
and
they could not cross the engine number to a VIN.  However, the engineer gave
me
some numbers to make a complete VIN:

1G2FW87F    2GN207358

1 = U.S.
G = GM
2 = Pontiac
FW = TransAm
87 = hard top (not convertible)
F = fuel injection

2 = I was told this is a, "check digit"... "is not important"
G = 1986
N = Norwood (assembly plant)
207358 is the numerical sequence.

I want to purchase a whole rebuilt computer.  My local parts stores are
looking
for an F, G, or H code.  Some people tell me the 8th digit of the VIN is
what
they want.  In the case above that would be F.  However....  If  F = fuel
injection, why would NAPA say it could be F, G, or H?

I have not been asked if it is automatic transmission, or manual, or
anything
else.  Why, are the automatic and manual computers the same?

TIA

Jens Larsen
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