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How to determine Liter size of engine?

How to determine Liter size of engine?

Postby SilveradoSteve [OP] » Oct 10 2012, 7:19pm

I bought a 2003 Silverado 1500 Extended Cab used from a private party and was wondering how to tell what the Liter size of the engine is? I looked at the engine compartment and it is covered with a big plastic cover that says "VORTEC" and no other identifying marks that I can see. My choices are 4.3L, 4.8L, or 5.3L. I don't have the registration in front of me today (in case that is where it is located). Is there any other place to look?

Thanks for any help.
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Re: How to determine Liter size of engine?

Postby Wayne58 » Oct 10 2012, 7:28pm

Hello Steve and Welcome from Truro Nova Scotia >>> Sorry I am no help on ur query but someone will know how to confirm this for you >>> My truck is a 2010 RCSB 4x4 with a 5.3 L and 6 Sp >>> pics in my album >if you like >
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Re: How to determine Liter size of engine?

Postby Smoke Eater » Oct 10 2012, 7:35pm

Hey Steve, your registration will more than likely just say that your truck either has the V6 or a V8... I just looked at mine and all it says is V8. Is there not a diagram under the hood that shows the routing of the serpentine belt system? If so the diagram will more than likely have on it which motor it is for... just a thought so who knows.

Good luck, and btw welcome from Sydney Nova Scotia!
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Re: How to determine Liter size of engine?

Postby SilveradoSteve [OP] » Oct 10 2012, 7:42pm

Thanks Smoke Eater. I will check, but the last time I looked, all the "diagrams" under the hood were extremely faded to as not be useful. Thanks for the input from Sydney Nova Scotia!!
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Re: How to determine Liter size of engine?

Postby Machster69 » Oct 10 2012, 7:47pm

The engine code is available in the service codes of the glove box, You can run the codes through a rpocodes.com or similar site to see what all options the vehicle came with
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Re: How to determine Liter size of engine?

Postby Keegan Kael » Oct 10 2012, 7:48pm

If you have 8 spark plugs you definitely don't have a 4.3L. And if you have a Z71 you more than likely have a 5.3 since I've never seen one with a 4.8.
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Re: How to determine Liter size of engine?

Postby EKinMN » Oct 10 2012, 7:54pm

Try entering your VIN here:
http://www.decodethis.com/VIN-Decoded/vin

Should give you good info on your truck, including the engine size.
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Re: How to determine Liter size of engine?

Postby quade » Oct 10 2012, 8:01pm

EKinMN wrote:Try entering your VIN here:
http://www.decodethis.com/VIN-Decoded/vin

Should give you good info on your truck, including the engine size.


Damn EK... i was going to suggest this site... buuuut this is the best vin decoder site out there ^^
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Should've bought a V8
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Re: How to determine Liter size of engine?

Postby Smoke Eater » Oct 10 2012, 8:01pm

Keegan Kael wrote:If you have 8 spark plugs you definitely don't have a 4.3L. And if you have a Z71 you more than likely have a 5.3 since I've never seen one with a 4.8.



Look no furthur ;) My RCSB is a Z71 with a 4.8 in it.
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Re: How to determine Liter size of engine?

Postby EKinMN » Oct 10 2012, 8:03pm

quade wrote:
EKinMN wrote:Try entering your VIN here:
http://www.decodethis.com/VIN-Decoded/vin

Should give you good info on your truck, including the engine size.


Damn EK... i was going to suggest this site... buuuut this is the best vin decoder site out there ^^

So that you get credit, I will tell everyone that I stole this from another thread where you listed it--which I did! ;)
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