What motor is this?

So I picked up this motor for my dad from a guy who passed away's daughter. Basically she has no idea where it came from.

It has 799 heads and that sensor that hangs by the crank. you can see it in the pic.
It has a return style fuel rail, 78mm DBC TB, and an oil pan I have never seen.
I also noticed that the valley tray had embossed lines all over it, is that a VVT or DOD thing?

I was thinking a L33HO with the intake swapped.

http://i171.photobucket.com/albums/u...oad/photo1.jpg
http://i171.photobucket.com/albums/u...oad/photo3.jpg
http://i171.photobucket.com/albums/u...oad/photo4.jpg

I think you're correct... Motor out of an SSR or TB? Get rid of that oil pan lol

Would it be gen 3 or 4?

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Originally Posted by Jess

Would it be gen 3 or 4?

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Does it have the front cam sensor or rear?

its def outta a tbss or sn ssr. front and rear pics would help. if it says 6.0 u have yourself a ls2.

I think its the front sensor, thats the one that comes around the balancer?

It has 5.3 stamped on it.

I guess I'm looking for an F-body pan and oil pick up, Its going in an off road buggy.

Out of a Denali Envoy maybe?

Front cam sensor is dead give away for Gen IV, but the intake is not. Maybe from an envoy or SSR. I don't know much about either of those.

as said above looks like the same motor i have out of a envoy denali, same oil pan, aluminum block and 799 heads. looks like an LH6 just different intake.

look at the color of the crank sensor, its located on the passenger side of the block above the starter. If it's grey or white it's a gen4 engine. Black sensors are gen3. If you don't have the sensor, look in the hole and if the reluctor wheel in there is two stacked plates it's gen3 and if it's one solid plate about 3/16" wide with evenly spaced notches it's a gen4.

Alright im pretty sure its gen 4 and the intake has been swapped.

That being said would this have DOD and VVT?

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Originally Posted by Jess

Alright im pretty sure its gen 4 and the intake has been swapped.

That being said would this have DOD and VVT?

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Did the SSR 5.3 have the 90mm intake? or the Envoy? I'm not aware if they did or not. Do you know where the engine came from? Can you just ask the guy what's up with it? If it has DOD you can tell my checking the lifters. If it has VVT, you can tell just by looking at the front cam sensor. The VVT ones are spaced out quite a bit further from non VVT.

EDIT: VVT also has a phaser and two sensors on front, not just the one.

As you can see, the cover on the left has the phaser in the center and the sensor is spaced further out than the non VVT on the right.

http://image.hotrod.com/f/29378617+w...ming_cover.jpg

According to Google, this is an SSR engine. Look at the oilpan. It is the same as the one you have.

http://www.ssrfanatic.com/forum/atta...sr-yo1-094.jpg

If it is an LY6, it has DOD. If it did in fact come from an SSR, it would have the 78mm intake stock.

Thanks for the input, so it does not have vvt then. Is there any external way to determine if it have DOD? Or are the lines on the valley tray a dead give away?

I cannot ask the guy that bought it because he passed away last year.

Im pretty sure now that it does have DOD this is what the valley tray looks like. http://ww2.justanswer.com/uploads/xs...195532_1-2.gif

That being said is a dod delete easy or even necessary?

I've heard that it's not too hard. Just a little more $ than a normal cam swap. This is just what I've heard. I have no first hand knowledge.

Also, what year did they make DBC TB's with DOD? That is new to me. I thought all the DOD motors came with DBW TB's.

Also, with that hole in the center of the oil pan, I'd put my money on it being from an Envoy Denali. Unless the SSR's were AWD, I think that "hole" is for the front shaft on the Envoy's and Trailblazers. Any thoughts on this theory?

DOD is deleted by simply pulling the heads, changing lifter trays, lifters, and the valley cover.

Do you have to delete it if your not going to use it? Or what is the reason to?

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Originally Posted by Jess

Do you have to delete it if your not going to use it? Or what is the reason to?

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It can be tuned out, but those DOD lifters are JUNK JUNK JUNK. For 200$ you can delete it and have the peace of mind of having good parts.

So I tore it down today and it was DOD. Can I use the 8 good lifters and just replace the 8 DOD ones? The lifters have metal all the way around the roller like the Ls7 ones. The motor only has 10k on it so everything is very new.

Quote:

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Originally Posted by Jess

So I tore it down today and it was DOD. Can I use the 8 good lifters and just replace the 8 DOD ones? The lifters have metal all the way around the roller like the Ls7 ones. The motor only has 10k on it so everything is very new.

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You could, but for the price of a set, I'd just replace them all.

Got a little further with the motor. Do I have to change the valley tray to complete the DOD delete or can I just not plug it in?

Quote:

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Originally Posted by Jess

Got a little further with the motor. Do I have to change the valley tray to complete the DOD delete or can I just not plug it in?

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You need an LS2 valley cover. If not, you'll have crap for oil pressure.

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Originally Posted by pl4yboy

You need an LS2 valley cover. If not, you'll have crap for oil pressure.

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or the 4.8 nnbs cover witch is alot cheaper than the ls2 valley cover.

i had the same dilema but mine was a aluminum 6.0 243 heads with yellow springs vvt and dod normal pan though so i thought about a g8 6.0maybe.

urs is prob from an envoy or v8 trailblaser non ss since its a 5.3 and that pan is used in trail blasers

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Originally Posted by coloradoss

or the 4.8 nnbs cover witch is alot cheaper than the ls2 valley cover.

i had the same dilema but mine was a aluminum 6.0 243 heads with yellow springs vvt and dod normal pan though so i thought about a g8 6.0maybe.

urs is prob from an envoy or v8 trailblaser non ss since its a 5.3 and that pan is used in trail blasers

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Never even thought about the NNBS 4.8. Good call on that!

Good lookin out. Thanks guys.

I didnt have time to read this whole topic. I dont remember if this engine is gen3 or 4. FWIW if your dod engine is not gen4 you cant put the nnbs valley cover on it. The gen4 cover has the oil pressure sending unit boss built into it.

Is it possible to be gen 4 but 24x reluctor?

Looks like a 5.3 out of a V8 TrailBlazer or Envoy...

Is it possible to be gen 4 but 24x reluctor?