2004 6.0 NV4500 Tahoe

[findog78]

Ya god dang right I am!

The plan is cut everything off the other axle and weld it on this one with a plasma torch, re powder the beefy diff cover to my sparkly goodness (aka diamond dust). Put the old calipers off the front of the Tahoe with the power stop pads but get new H2 rotors. Gotta buy the pigtail that plugs into the electronic locker, a lube locker gasket, and gear oil, then finally paint it all blaccckkkk with cheap tractor paint/chassis saver.

Dantheman Is the 2004 2 WD with 5speed NV4500 from your profile the same one in your profile pic? Do you have any posts of the coil over conversion?

 

[Dantheman1540]

Dantheman Is the 2004 2 WD with 5speed NV4500 from your profile the same one in your profile pic? Do you have any posts of the coil over conversion?

Yep that’s it, if you got to page 124 of this thread you can see the start of the coil over swap.

 

[findog78]

Thanks.

 

[findog78]

They are really too nice for me. I'll almost feel bad blasting them with dirt from the farm roads I have to navigate occasionally.

How do you like the ride?

 

[Dantheman1540]

How do you like the ride?

It’s truly fantastic whether you want soft and supple or stiff and race car-like, you can adjust the compression and rebound adjusters and tune it to your liking. I used them to replace a basic 2/3” drop kit and got matching shocks in the rear and it is the best riding lowered vehicle I’ve been in. People who ride with me for the first time are always surprised.

I’ve seen some posts of people complaining about a harsh ride with the coil overs and IMO they either didn’t spend the time to properly adjust the shock settings, got way to stiff of a spring, or have some sort of suspension geometry issue unrelated to the coil overs such as a 4” drop in the front and stock control arms, or a 3” drop in the rear without doing the “free travel mod”.

I have Atomic’s setup on this truck and another that’s lifted and it rides even better!

 

[Dantheman1540]

26* this morning and it had perfect oil pressure on startup, she's such a random biotch.

I've been contemplating doing the oil pump as preventative maintenance and if I'm gonna do that and plan to spin this thing above 6k often then a decent timing set is probably a good idea. I tossed the question out on PT.net and a long-time buddy I used to work with/for suggested this https://www.corvetteforum.com/forums...-no-equal.html looks pretty sweet and the guy that suggested it has a badass C5 so I think I'm gonna try it.

Along with that, I bought a basic M295 melling pump and gasket set.

 

[Dantheman1540]

While overthinking this head swap again I ran some more numbers through the CR calculator and realized I may have been using the calculator wrong before. On the deck clearance box, I was putting a positive number thinking that since the piston is out of the hole .004-.008 it would want a positive number to calculate correctly. Well, I just put it in as a negative since having the piston out of the hole would obviously subtract from combustion volume and increase the CR and when I did the CR went up. So previously I was looking at 10.16cr if I used .051 gaskets and input the number as a positive. If I put it in as a negative I end up with right at 10.5:1.

If this is the case then the current setup runs a 10.75:1 which is more than I thought.

 

[iamdub]

While overthinking this head swap again I ran some more numbers through the CR calculator and realized I may have been using the calculator wrong before. On the deck clearance box, I was putting a positive number thinking that since the piston is out of the hole .004-.008 it would want a positive number to calculate correctly. Well, I just put it in as a negative since having the piston out of the hole would obviously subtract from combustion volume and increase the CR and when I did the CR went up. So previously I was looking at 10.16cr if I used .051 gaskets and input the number as a positive. If I put it in as a negative I end up with right at 10.5:1.

If this is the case then the current setup runs a 10.75:1 which is more than I thought.

All good numbers. With that cam, your DCR is still safe.

 

[Dantheman1540]

All good numbers. With that cam, your DCR is still safe.

I will probably end up putting on .051 gaskets to get close to 10.5cr in case I miraculously find some sort of Wuhan whirly boy to force-feed this thing.

Other good/bad news is that my low oil pressure on cold start issue seems to have eliminated itself and I think it was caused by a severe misfire which I recently solved with the new plug wires. The truck has not only started up with 40psi every morning but it doesn't act funny and buck/surge like it used to either. the bad news part of this is that I beta my head against my laptop for close to a year trying to solve the weird startup condition that I was convinced was tunes related. I think the entire time it had a severe misfire. Another reason I think this, is that when I did the plug wires the other day I was being bothered by a neighbor talking to me the entire time and I actually started the truck with 2 wires disconnected from the plugs #4/#6. The truck started up fine and I wouldn't have noticed there was an issue except I did a visual inspection before I closed the hood and saw them. My point is that these trucks will run remarkably well even down on cylinders.

 

[George B]

I will probably end up putting on .051 gaskets to get close to 10.5cr in case I miraculously find some sort of Wuhan whirly boy to force-feed this thing.

Other good/bad news is that my low oil pressure on cold start issue seems to have eliminated itself and I think it was caused by a severe misfire which I recently solved with the new plug wires. The truck has not only started up with 40psi every morning but it doesn't act funny and buck/surge like it used to either. the bad news part of this is that I beta my head against my laptop for close to a year trying to solve the weird startup condition that I was convinced was tunes related. I think the entire time it had a severe misfire. Another reason I think this, is that when I did the plug wires the other day I was being bothered by a neighbor talking to me the entire time and I actually started the truck with 2 wires disconnected from the plugs #4/#6. The truck started up fine and I wouldn't have noticed there was an issue except I did a visual inspection before I closed the hood and saw them. My point is that these trucks will run remarkably well even down on cylinders.

Glad you found it.