Stumped by this engine

[[email protected]]

I have a fellow worker who stops in the shop (woodworking) with a 1999 chevy pickup
He says it is a c30 or k30 really super heavy duty frame is rear adjustable, It has a borgwarner transfer case 8 lug wheels
What has me stumped is it is a 5.7 but does not say Vortec. Also the intake manifold is individual injectors for each cylinder.
The truck for sure is all stock .I am sure of it
Anybody know what this is?
Did Chevy use the marine fuel injection intake and fuel injection on a production truck?
Thanks Skip

 

[SAATR]

I have a fellow worker who stops in the shop (woodworking) with a 1999 chevy pickup
He says it is a c30 or k30 really super heavy duty frame is rear adjustable, It has a borgwarner transfer case 8 lug wheels
What has me stumped is it is a 5.7 but does not say Vortec. Also the intake manifold is individual injectors for each cylinder.
The truck for sure is all stock .I am sure of it
Anybody know what this is?
Did Chevy use the marine fuel injection intake and fuel injection on a production truck?
Thanks Skip

Never seen such. Have any pictures?

 

[[email protected]]

when he stops in I will

 

[magimerlin]

Did it look like this? If so that is an tpi setup, and uses 1 injector per cylinder. It is NOT stock on any year truck for our body style, though people have swapped them on there. And if the rear is adjustable as you mentioned, our trucks never had adjustable rear as stock. So in short the truck is in no way stock as far as those items go.

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[[email protected]]

No It does not look like that
He says it is the same chassis as a big box truck. And I helped him change an injector.
it also has the same looking black pcm.
Like I said I will take some pictures when he stops in again. He does alot of volinteer work

 

[L31MaxExpress]

I have a fellow worker who stops in the shop (woodworking) with a 1999 chevy pickup
He says it is a c30 or k30 really super heavy duty frame is rear adjustable, It has a borgwarner transfer case 8 lug wheels
What has me stumped is it is a 5.7 but does not say Vortec. Also the intake manifold is individual injectors for each cylinder.
The truck for sure is all stock .I am sure of it
Anybody know what this is?
Did Chevy use the marine fuel injection intake and fuel injection on a production truck?
Thanks Skip

Sure it is a 5.7 and not a 7.4?

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[454cid]

I'm not sure what you mean by adjustable..frame? Axle? Either one isn't "adjustable" in any way I can think of.

If it's the same frame as a box truck, it's probbaly a 3500HD... all those, if 4x4, are conversions. The Borg Warner transfercase was used in the regular K3500 1-tons.

C30 and K30 were the designations for the Squarebody trucks from the 70's through 80's.

 

[[email protected]]

I dug deeper on this truck ends up being a 2000 not a 1999 (stills looks obs) So I think it is an ls
As far as adjustable frame rail I did not look at them
Supper heavy duty looking truck though
Thanks for the conversation
Back to putting mine back together

 

[454cid]

...So I think it is an ls

That would have to be a swap.

 

[MIHELA]

Didn't they offer the 8.1 on later 3500HDs? Could be one of those.