6.2 swap thread

[PatDTN]

One thing I hated about the 5.3 is you had to rev the shit out of it to move.

That really shouldn't be a problem now. :-D

 

[ls1frc]

Well, got everything installed.

Turned the key and heard immediate screeching. I tried a couple times and it backfired. It did make great oil pressure.

I have a feeling I somehow still screwed up the cam phaser install and that is the screeching noise. I really hope so, because I will just run my 3 bolt cam if that's the case. I will start tearing down the front cover and valvetrain now, will report back.

 

[ls1frc]

I didn't have any coolant in the system, could the water pump make a screeching noise if it's dry? If I can get an answer on that, I'll try running it again with no belts.

 

[FrankU]

The 6.2 should have come from the factory in the Tahoe.


Waiting too hear this baby fire up Mike.

 

[PatDTN]

Ooh. Hope it's just the coolant issue. After all of my install I have a bad bearing in my water pump. Replaced the idler pulley then swapped the tensioner pulley off my 5.3 and still have the noise. >sigh<

 

[ls1frc]

Started it with no belts. No noise and started right u. Thank god!

 

[mikeyss]

The 6.2 should have come from the factory in the Tahoe.

They did, in 2009

 

[ls1frc]

 

[ls1frc]

 

[ls1frc]

Got on it very slightly from 3k rpms in 1st. Just a quick blip. It snapped me and my sons heads back so hard LOL. He loved it. Kept asking me to do it.

 

[ls1frc]

You can really feel the advance of the cam. The low rpm torque is incredible for a big truck like this.

 

[Tonyrodz]

Congratulations! I can't believe how calm you were throughout the whole process. I would've been cursing from sun up to sun down lol! Glad you got it going. I have a similar melling oil pump in my van, warmed up idling the oil pressure is like 60 psi. I agree with you on should've went down a step or just swapped out the spring.

 

[ls1frc]

Thank you. Im pretty stubbornly persistent. This time it paid off. I had to get this thing running, today was the last chance before frozen hell.

As the oil warmed up, the melling calmed down. Its now about 32 at 525 idle. Ill roll with it.

Looking back, the one part of the job that made me curse was simply separating the trans. That was tough.

 

[ls1frc]

Anyone have ideas on how to quickly sell my 5.3? Not sure what they go for.

 

[Sam Harris]

Anyone have ideas on how to quickly sell my 5.3? Not sure what they go for.

It’s worthless. Ship to me for proper disposal.

 

[ls1frc]

I also have lightly used PRC 2.5 243 heads with PAC 1219 springs. And the stock intake manifold.

 

[Sam Harris]

I also have lightly used PRC 2.5 243 heads with PAC 1219 springs. And the stock intake manifold.

Also worthless. I’ll dispose of these for you as well. To save the earth and stuff.

 

[ls1frc]

Lol it's literally 10 days straight of precipitation. Won't get any WOT tuning done for a while. After how it felt at part throttle, Im dying to see what WOT is now.

 

[ls1frc]

Wait, Tuesday looks clear. I better get the entire thing done that day lol.

 

[PatDTN]

Your new torque converter might complicate snow starts.