Mild 6.0L Build Suggestions?

[Matthew Jeschke]

Found it, thank god

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[Matthew Jeschke]

Ah sheet... I seem to have messed up. Read wrong line on torque specs. Tried to do 22ft lbs... it is 106 inch pounds. Believe I started stripping the threads

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[fasteddy]

Glad to see you're moving along and getting skilled input.....
All this talk about engines makes me want to ditch my 6.0L build and go 6.6L
I love TQ and strokers make a boatload.
Even though there is absolutely nothing wrong with my current 5.3

 

[Matthew Jeschke]

The LS is a facinating motor. They really worked to squeeze more out of this motor. A 6.6 would be awesome. I would love to get my hands on an LS7. But pipe dreams haha

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[Matthew Jeschke]

I finally got the short block fully assembled. Few things that threw me for a curve...

1. That stupid rear main seal. I am glad I pulled it off and did the RTV. I could push it out by hand with ease. Front one wasn't RTV'd but is in like a rock. I did however, get a little RTV on the lip of the seal. Hopefully doesn't hurt anything, I worked really hard to clean it off (see picture)

2. Stripped bolt in oil pump was no issue. I pulled it back out, cleaned the threads with a tap. Then put the bolt back on with proper torque spec and blue lock tight. Hopefully holds as good as if I didn't nothing wrong to begin with

3. Stupid exhaust manifold mistake haha. I used electrolysis to clean off rust before painting it but backwards for a little while. It pitted the manifold mating surfaces. I took a belt sander and sanded them down for about 30 minutes. Then checked for flatness was good to 10 thousands but 5 could start to slip through. I still have a bit of pitting in the surface. I'm not sure if that will cause a heat stress / air pockets and wear the gasket out?

Lastly, Engine stand is top heavy. It wants to flip the head side down. Is there a trick to these to get them re adjusted? I feel like I've got the motor as low as it will go on the stand. Last motor I built on a cardboard box in my living room haha. Was a PITA but I got it done.

 

[fasteddy]

Your manifolds look nicely restored. As long as they mate to head with the gasket you'll be fine.

I think the speed engineering headers look good (future mod). Inexpensive for stainless and includes the cross over and flange.


Engine stand wants to flip over? Most have a cylinder in the back where they slide into a sleeve with holes.
That way the engine can be rotated for assembly. A pin inserted into a hole serves as a lock.
The handle in the back serves as a lever to rotate.



Hope that helps.....

 

[fasteddy]

Hey check this out....
Seriously considering this company for a long block
6.6L @ 575hp NA, but I'll swap out the LS3 heads for cathedrals.
3 yr unlimited mileage warranty. That's a big sale point for me.
I usually use Texas Speed. Engines come with a start up warranty and that's it.

408 LQ9 Long Block Engine: L408-HR-LB4-1 (prestigemoto.com)

Maybe it'll beat my suburban in a straight race, but I doubt it. Might be close.

 

[Matthew Jeschke]

You're making me want to do a 6.6 instead haha I am def novice. My engine stand had the motor mounted up as high as it could go. I adjusted it and it's a little easier to handle. Few quick questions...

Harmonic Balancer fully seated? I pushed it on till it would go no further but there's still a little bit of a lip showing. and 15/100 inch in front of the crank snout. Not sure if that's correct?

Cylinder Head Gasket right direction? there was a confusing note in my gasket set. It said make sure to install this side up, and look for print on gasket saying, this side up. I just want to quadruple check that note wasn't for my cylinder head gaskets. It said front on it and cannot really be installed any other way. I wonder if note wasn't accidentally put in my overhaul kit.

Lifter drag? I bought *used* Johnson 2116LSR link bar lifters. They are slow leak drop in lifters with link bars for LS style motors. All but 3 of them when in with little resistance once lined up. The other three had to be turned as installed then once lip was in could slide in. They do have a little drag and slight drag noise when actuated by hand. However, it's very minute. I'm assuming those will mate up fine? Break in? I presume are burrs on lip of lifter by roller. Not 100% sure.

It's actually starting to look like a motor

 

[iamdub]

Harmonic Balancer fully seated? I pushed it on till it would go no further but there's still a little bit of a lip showing. and 15/100 inch in front of the crank snout. Not sure if that's correct?

Per the service manual: "The nose of the crankshaft should be recessed 2.4–4.48 mm (0.094–0.176 in) into the balancer bore."

there was a confusing note in my gasket set. It said make sure to install this side up, and look for print on gasket saying, this side up. I just want to quadruple check that note wasn't for my cylinder head gaskets. It said front on it and cannot really be installed any other way. I wonder if note wasn't accidentally put in my overhaul kit.

I don't believe I've ever seen "THIS SIDE UP" on any LS head gaskets. I've seen only seen "FRONT" since they can only go one way without blocking the water jackets at the rear of the block.

 

[Matthew Jeschke]

@iamdub thanks! any thoughts on the lifter drag?

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