pcf_mark

iTrader: (1)

I was hoping we could compile a list of the components and part numbers for the balance of the items needed to make our LS7s run. We have been focused on the PCM and I think a lot of effort is being made on that front which will come to market in next 60 - 90 days. However I am trying to assemble the "other stuff" that we need to acquire to make this engine run in the car. Starter list:

Mass airflow sensor
Starter
Dry sump tank
Dry sump lines
Dry sump vent/purge system (included w/ tank?)
Dry sump dip stick (included w/ tank?)
Idler puller (LS7 specific?)
Alternator brackets (LS7 specific?)
Engine covers
Drive by wire computer
Drive by wire pedal assembly
Coolant system diagram (which one goes where and how to properly fill it? Any vent system like LS6?)
Oil system diagram (found a good one at corvette forum from someone on the list

Most of you have probably tried like me only to discover you can not buy the manual yet so someone from GM is going to have to throw us a bone. I KNOW I am missing some items. Please jump on board!

98blackSS

I just emailed these guys yesterday about their accessory bracket setup..

http://www.hotrodlane.cc/Video/LS7intro.html

98blackSS

We ordered the dry sump tank this week as well. I think the tank and both hoses totalled close to $900..

org

Is there any reason a aftermarket tank and hoses can't be used?

org

pcf_mark

iTrader: (1)

The factory lines use a quick disconnect that is patented by Visteon. You can use an aftermarket tank but you need to connections to the pan to make it happen. Otherwise you will need to cut and weld on the pan which sounds like no fun. My plan is to try and fit the tank and lines intact. Otherwise I am going to cut the ends off the lines and move things around. The factory tank is the hot ticket if you can fit it. Great design. I think it will fit in the inner fender area with oil fill peaking out so you can top it off.

Part numbers anyone?

Mark

Builder

Still better than GM. The best price I could find on the GM tank (cap & dip stick) and both lower lines was around $950.I can't thing of one. I don't know what the fittings are on the pan.

Drewman

iTrader: (10)

Anyone have dimensions on the tank yet?

These?

https://ls1tech.com/forums/generation-iv-internal-engine/360249-ls7-part-numbers-some-prices-here.html

LS7 Engine oil tank 12603281
LS7 Oil Pan 12596689
LS7 aux eng oil tnk hose 15210117
LS7 aux eng oil tnk hose 15210122

John B

iTrader: (10)

Here's the tank dimensions



Other info that I know for a fact is:

Drewman

iTrader: (10)

Thanks.

98blackSS

Great info.. Thanks John.

Builder

Thanks, John. I was wondering about that. Does anyone know what type of threads those are (in the tank for the oil lines)?

-- Scott

Builder

John, do you know if the brackets are the same, too?

Thanks,
-- Scott

John B

iTrader: (10)

That's part of the problem...NO THREADS!!!


Scott, I guess we'll have to check part numbers when someone has access to them.

Builder

WHAT!? Now that's interesting. IIRC, there are threaded ends at the oil pan. I will see if I can determine what they are.

-- Scott

Builder

NOT! There are not threads on the pan side...just the bolt hole for the retaining flange.

-- Scott

John B

iTrader: (10)

Scott, I was afraid that you might be delusional being in the presence of that LS7 the first time you looked at it!!!

Builder

Ha! You mean, more than I am usually?

Well, on the engine that I picked up, the pan has plugs in the holes. Didn't pull them until today, but I thought I had seen a picture of the pan with threaded holes. I know the first mod I am going to make... Pull the pan and weld some -12 AN fittings on there.

There's a tank made by ARE that is close in size (25.5"x6") and, with an aluminum breather catch can, K&N filter, and mounting bracket assembly, it's about $630.00. Comes with -12 fittings. It's total capacity is 2.5 gallons (air and oil).

More pictures of the LS7 today...

-- Scott

98blackSS

Thanks for the info Scott. Looks like a nice piece.

Our teardown starts tomorrow! Entire drivetrain coming out - gonna be a long day. Going to do some test fitments of the tank and LS7 pan in the car to see how much fab will be required.

pcf_mark

iTrader: (1)

Learned something interesting about the oil fill cap on our LS7. The factory sends the cap wire tied to the fuel rail. This cap is designed to be installed and never removed! The correct fill/add is through the dry sump tank. When you install that cap you are comitted to never removing it. If you do the plastic locking tangs will drop into the valve cover.

Great info on the oil lines. I think I am going all GM on this if it fits. Has anyone tried to tuck these away in the fender well yet?

Builder

Yeah, I read that in some press. What's up with that? Does it require some oil be added to the top end for start-up? Why have the cap there at all? Definitely asking for trouble.

I have another question about the GM lines. If anyone has a set, how long are they and what is the ID?

Thanks,
-- Scott