Finding engine year off engine code?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
I have a motor that is not original to the vehicle. My issue is trying to decode the engine block to get parts. almost everyplace wants year make and model....all i have is the engine stamping...it narrows it down but still not specific...any ideas?
 

DanMcG

Full Access Member
Joined
Jun 28, 2014
Posts
1,076
Reaction score
1,891
Location
Central NY
First Name
Dan
Truck Year
1978 1985
Truck Model
k10 k10
Engine Size
400 350
the number on the block behind the alternator will give ya what ya need.
the last three letter suffix is what ya need to know. then look it up here.

73-87 Pickup Engine Identification
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
thanks I will give that a try...
 

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,439
Reaction score
5,581
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
You must be registered for see images attach
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
the highlighted is the motor code on the back of the motor . I am pulling it out of an 85 k 10 but it is not original...
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
FBM is my 3 letter suffix. which lime book says 1987 350 170hp manual trans,,,,out of a truck if i am reading the headings correctly.
 

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,439
Reaction score
5,581
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
FBM is my 3 letter suffix. which lime book says 1987 350 170hp manual trans,,,,out of a truck if i am reading the headings correctly.

Yep, so that will be a TBI 350 from a truck. 1 piece rear main seal, which is nice... but TBI heads, which is not nice.
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
so this has a carb on it.....i know it says tbi....but i already replaced the carb.
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
i will just be happy to know 87 chevy 350 C10 motor, for ordering parts
 

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,439
Reaction score
5,581
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
so this has a carb on it.....i know it says tbi....but i already replaced the carb.

Right, but it is still a TBI engine. Most likely the PO took the motor out of a truck in the junkyard, swapped the accessories and intake/carb over from the old motor, and stuck it into your truck. A 350 is a 350 for the most part, you run into a few minor differences in some years with intake bolt pattern issues or which side the oil dipstick is on, but mostly they are all interchangeable. You'll need year of the motor for oil pan gaskets and rear main seal, you'll need year of the truck(maybe.. still no pics to confirm) for anything on the intake/distributor/accessory drive.
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
You must be registered for see images attach
You must be registered for see images attach
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
heres a couple pics.
 

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,439
Reaction score
5,581
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
heres a couple pics.

Interesting... so the old accessory drive stuff on the front and it looks like NOT TBI heads. So maybe only the short block was used from the donor. It might be worthwhile to look for a casting mark on the front of the head or pull a valve cover and get the cylinder head casting number to confirm what was used. What are you trying to do here? Is the motor toast or are you just trying to freshen it up a bit?
 

Ken B

Full Access Member
Joined
Sep 18, 2019
Posts
1,191
Reaction score
1,455
Location
indiana
First Name
ken
Truck Year
81
Truck Model
c10
Engine Size
250
just freshen , i am upgrading from my original straight six. i pulled the 350 out and it was running.
 

Latest posts

Forum statistics

Threads
44,165
Posts
950,710
Members
36,279
Latest member
MTBR12
Top