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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: SoEasilySwayed on February 03, 2015, 02:37:15 pm

Title: Trying to figure out Engine Size
Post by: SoEasilySwayed on February 03, 2015, 02:37:15 pm: This might be a dumb question :o

I'm trying to figure exactly what engine is under the hood.
This truck used to be a diesel, but was converted.
The VIN says its a 454, but, I think its smaller, and I know its not going to be the same engine...

This is the info I got from the VIN:
Division: GMC
Chassis Type: 2 Wheel Drive
Engine Description: 454-4 V8
Series: 10
Body Type: Pick-Up
Year: 1979
Assembly Plant: Fremont, CA

Is there something/somehow I can check on the motor? Like Engine ID/Serial #?
It's still in the truck.

ALSO. The Fender Emblem says High Sierra 1500. Is that like the Chevy C15 or C10?
I know GMC/Chevy are the same, but I want to know what chevy parts I can work with if I go to the junk yard...
Title: Re: Trying to figure out Engine Size
Post by: zieg85 on February 03, 2015, 03:45:11 pm: C10-Chevy 1500-GMC equivalent. On the block behind the alternator is a number that can be decoded as to what it is and its original application
Title: Re: Trying to figure out Engine Size
Post by: zieg85 on February 03, 2015, 03:48:20 pm: Here is an example of what to look for assuming it is a Chevy engine
Title: Re: Trying to figure out Engine Size
Post by: SoEasilySwayed on February 03, 2015, 07:17:14 pm: Oh great! Would the alternator have to be removed in order to see that? if its there?
Im going to be looking this weekend and ill let you know how it goess
Title: Re: Trying to figure out Engine Size
Post by: enaberif on February 03, 2015, 08:01:46 pm: Pad behind the alternator is not always accurate though its a good spot to get started.

Look at this area to find a number which will give you a better idea:
(http://www.speednik.com/files/2013/09/chevyasylum-com.jpg)
Title: Re: Trying to figure out Engine Size
Post by: SoEasilySwayed on February 03, 2015, 08:47:53 pm: Thanks @Enaberif Ill look for that too!
Title: Re: Trying to figure out Engine Size
Post by: Blazin on February 04, 2015, 07:34:01 am: Pad behind the alt. is the best bet. Van tell you what the engine is, even what it came out of, Car truck etc.