2004 6.0 NV4500 Tahoe

[Dantheman1540]

thats always a good sign

Still difficult to bend it fully but it's getting there.

That explains why I didn't see the answer to it and thought it was just a question. My answer to "What is the smallest bone in a goat?" was gonna be "Yours."

It was late and I'm bad at phone posting.

You would be correct but I'm not into goats anymore.

 

[Rocket Man]

@Rocket Man Your Bromigo Mr. Vinci responded with his recommendation and it makes me feel good about using my 224/228 .600/.600 113lsa.

Thanks Dan,

So with this and the other information in mind along with your goals, my recommendation is: 578/587/222/228/114+4A built on our “rapid ramp” lobe profile. Preferred range: 2700 to 6700. This combination will provide about 85 plus HP and like torque. It will have a pretty aggressive idle which can be adjusted to be rougher or smoother via HP tuners. Street manners should be very good because of our exclusive ramp profiles. While I could easily push the lift up over the .600” mark, tests have proven the factory heads just won’t flow much more when the lift is higher than .585” so why forfeit valvetrain longevity? Also, while extending duration is easily accomplished, it is a daily driver, not a weekend drag truck. Some common sense must be used when specing out cams for this purpose. Since all of our US 5150 steel billet cams are built on CNC’s, our cam specs are pretty easily adjusted. If there is a reason you feel you needed more lift, a duration change or LSA modification, it’s is easily accomplished.

Let me know what you think. I’ll be honest with you with my answers.

Regards,


Although my cam is not exactly what he speced it is very close in many ways. The lift is marginally different and if I do eventually end up with better heads the cam won't be lacking in lift. The exhaust duration is the same and the intake is only off by 2 which would warrant a slightly more aggressive idle in the Vinci cam but would be tamed out a tad by the wider 114lsa. So I think my choice is good and I will certainly consult him in the future.

Also I should add I'm not a cam guru at all, the above guesstimation is just my thoughts after reading a book and many internet posts about it. Please don't take any of my babble as fact.

See what I mean about Roger? The dude is full of knowledge on LS valvetrains and he loves to help. He sometimes would email me back on weekends within a half hour, even gave me his personal contact info so my calls and emails would go straight to him. You should let him know you’re going to use the cam you have now, and order one from him for your pickup in the future. Good to know that 224/228 looks like a good fit.

 

[Dantheman1540]

See what I mean about Roger? The dude is full of knowledge on LS valvetrains and he loves to help. He sometimes would email me back on weekends within a half hour, even gave me his personal contact info so my calls and emails would go straight to him. You should let him know you’re going to use the cam you have now, and order one from him for your pickup in the future. Good to know that 224/228 looks like a good fit.

I am very impressed, the best technical customer service I have ever experienced. That is pretty much exactly what I told him and now I'm very intrigued to know what he would suggest for my Silverado.

 

[Dantheman1540]

Heads will be done today!

I guess I thought the heads that were on this were a little better than they were. I thought they had been lightly ported but the machine shop doesn't seem to think so. Simply Stock 862s with a factory 2" valve cut in nothing very fancy at all. Oh well still ups the compression a bit and should flow plenty for a 6,000 rpm motor.

 

[Rocket Man]

That’s awesome news. Do you have everything else you need to put it back together?

 

[Dantheman1540]

That’s awesome news. Do you have everything else you need to put it back together?

My order from TSP with trunion upgrade, gaskets, and head bolts will be here Sunday sometime. I ordered yesterday and paid for 2-day shipping so I ama disappointed it won't be here tomorrow.


Edit: Looks like I am an idiot I only paid for regular home delivery. Not sure how that happened but oh well, End of next week was my goal to have the truck running and driving.

 

[Tonyrodz]

My order from TSP with trunion upgrade, gaskets, and head bolts will be here Sunday sometime. I ordered yesterday and paid for 2-day shipping so I ama disappointed it won't be here tomorrow.


Edit: Looks like I am an idiot I only paid for regular home delivery. Not sure how that happened but oh well, End of next week was my goal to have the truck running and driving.

Still quicker then mine

 

[Dantheman1540]

Still quicker then mine

I ended up paying a little expedite fee. They still haven't finished the motor for my silverado and it's been since you started your project lol.

Got the heads back! The machine shop talked me into replacing the LS6 2 piece sodium filled valves with stainless valves along with replacing the valve seals so they are basically brand new heads.

All I can do untill parts arrive is done.
-The 224/228 cam is in
-The head bolt holes have been cleaned with an arp thread chaser.
-The block deck has been cleaned but I will do a final clean before the gaskets go on.
-I fixed up the grounds on the back of the block they were pretty narly looking.
-Lifter and trays are back in

I think that's about it. I need to get a cam retaining plate tomorrow along with oil and coolant so that's ready Sunday.

Anyone looking for a 212/218 high lift cam?

 

[Rocket Man]

I ended up paying a little expedite fee. They still haven't finished the motor for my silverado and it's been since you started your project lol.

Got the heads back! The machine shop talked me into replacing the LS6 2 piece sodium filled valves with stainless valves along with replacing the valve seals so they are basically brand new heads.

All I can do untill parts arrive is done.
-The 224/228 cam is in
-The head bolt holes have been cleaned with an arp thread chaser.
-The block deck has been cleaned but I will do a final clean before the gaskets go on.
-I fixed up the grounds on the back of the block they were pretty narly looking.
-Lifter and trays are back in

I think that's about it. I need to get a cam retaining plate tomorrow along with oil and coolant so that's ready Sunday.

Anyone looking for a 212/218 high lift cam?
View attachment 257928

View attachment 257924 View attachment 257925 View attachment 257926 View attachment 257927

That looks so nice. Nothing like new clean parts, assembling an engine. I’m so jealous. One day I’m gonna build one badass LS engine.

 

[Tonyrodz]

I ended up paying a little expedite fee. They still haven't finished the motor for my silverado and it's been since you started your project lol.

Got the heads back! The machine shop talked me into replacing the LS6 2 piece sodium filled valves with stainless valves along with replacing the valve seals so they are basically brand new heads.

All I can do untill parts arrive is done.
-The 224/228 cam is in
-The head bolt holes have been cleaned with an arp thread chaser.
-The block deck has been cleaned but I will do a final clean before the gaskets go on.
-I fixed up the grounds on the back of the block they were pretty narly looking.
-Lifter and trays are back in

I think that's about it. I need to get a cam retaining plate tomorrow along with oil and coolant so that's ready Sunday.

Anyone looking for a 212/218 high lift cam?
View attachment 257928

View attachment 257924 View attachment 257925 View attachment 257926 View attachment 257927

Double springs?

 

[Dantheman1540]

That looks so nice. Nothing like new clean parts, assembling an engine. I’m so jealous. One day I’m gonna build one badass LS engine.

Um you already have 1 badass LS and another nice healthy LS (sorry 4.8s can't be badass without boost).

 

[Dantheman1540]

Double springs?

Yes so if the main spring fails the inner spring will hold the valve up and stop bad things like we have had from happening. Cheap insurance that if I had had before all i would be doing right now it a single spring swap.

 

[Rocket Man]

Yes so if the main spring fails the inner spring will hold the valve up and stop bad things like we have had from happening. Cheap insurance that if I had had before all i would be doing right now it a single spring swap.

Also dual springs are required for cams with more than .550 lift otherwise the springs will bind. I didn’t see the lift on the cam you’re installing Dan but am I safe to assume it’s not .585 like Roger was suggesting if you bought one from him?

 

[Dantheman1540]

Also dual springs are required for cams with more than .550 lift otherwise the springs will bind. I didn’t see the lift on the cam you’re installing Dan but am I safe to assume it’s not .585 like Roger was suggesting if you bought one from him?

The new cam is 224/228 .600/.600 113lsa. The extra bit of lift is kind of a waste since the heads wont flow much better with more than .585 like Roger said but ported or after market heads could always be in the future.

Good point about binding but so many companies suggest single springs even at .600lift

 

[Rocket Man]

Um you already have 1 badass LS and another nice healthy LS (sorry 4.8s can't be badass without boost).

Yeah but I want to start with a bare ass block and go from there. I haven’t done that since I built an 800 hp Ford 460 for my jet boat back in the day and then added a Weiand 6-71 blower. It had Super Cobra Jet heads on it, ported, and all the best parts available. Even the casting # on the block was important in order to start with the best deck height to combine with the heads. That was fun. That BOAT was fun.

 

[Sam Harris]

See what I mean about Roger? The dude is full of knowledge on LS valvetrains and he loves to help. He sometimes would email me back on weekends within a half hour, even gave me his personal contact info so my calls and emails would go straight to him. You should let him know you’re going to use the cam you have now, and order one from him for your pickup in the future. Good to know that 224/228 looks like a good fit.

Sounds like I should pick his brain, and order my cam from him! You think he’d be ok with advising on heads as well? I really have no idea what heads & springs I want...

 

[Dantheman1540]

Yeah but I want to start with a bare ass block and go from there. I haven’t done that since I built an 800 hp Ford 460 for my jet boat back in the day and then added a blower. It had Super Cobra Jet heads on it, ported, and all the best parts available. Even the casting # on the block was important in order to start with the best deck height to combine with the heads. That was fun. That BOAT was fun.

You should find a 6.o or 6.2 and slowly start. With your documentation skills it would make a sweet thread! Then you could donate the motor to me

 

[Dantheman1540]

Sounds like I should pick his brain, and order my cam from him! You think he’d be ok with advising on heads as well? I really have no idea what heads & springs I want...

I have a feeling he can advise just about anything and make it understandable to us normal idiots lol

 

[Rocket Man]

The new cam is 224/228 .600/.600 113lsa. The extra bit of lift is kind of a waste since the heads wont flow much better with more than .585 like Roger said but ported or after market heads could always be in the future.

Good point about binding but so many companies suggest single springs even at .600lift

Yeah I said over .550, at least that’s what my buddy Roger Vinci taught me. And you meant DUAL springs, right?

 

[Rocket Man]

Sounds like I should pick his brain, and order my cam from him! You think he’d be ok with advising on heads as well? I really have no idea what heads & springs I want...

I’m sure he would love to chime in on heads. You should have seen our conversations on shit like torque converters, headers, rockers, superchargers.....I asked him all kinds of shit. Dude is smart as hell and he explains it all effortlessly.