Crobinson16

Same here, I've yet to find a long tube header that fits a 2014-2019 2500. The 2500 trucks have a factory body lift and that I believe is what is causing the fitment issues with the long tubes , and y pipes for 1500 trucks that are already available.

I know it's been awhile, did you ever figure it out. I'm having the same type of vibration / flutter at the same speeds. 35-55 mph. Doesn't matter what rpm or gear. Ive pulled the rear diff, axles and chewed all bearings, and replaced the joints, it's still there. I'm going to send the drive line out ot check for runout and balance. It feels like converter shudder but doesn't ack like it. I've locked and unlocked the converter and it's makes no difference.

I'm wondering the same thing. Any body know?

Is there a 185 or 190 t-stat option ?

Ive been following this new line of ecotec motors. I wanted to see what all changed, I was pissed when I learned the 6.2 incorporated afm, among other things. I knew the Corvette and Camaro had a lower temp thermostat, and more than likely shared the same water neck design. The 6.2 motor in the truck is pretty much the same as the Corvette and Camaro except cam, intake and vacuum pump along with some other things, but basically the same. And now I've be reading that GM has changed the recommended oil for the new Corvette and has also back specd for previous models to Mobil 0w 40 esp, not to be confused with Mobil 0w40 FS, but yet still recommend 0w20 in the truck that weighs nearly twice as much and can be put to higher oil temps in towing situations. My guess is you probably already knew that as I suspect you frequent Bob is the oil guy judging by some of your postings?. Just a guess though ? Not to get off topic but I'm still undecided on what I'm going pour in the valve cover next.

That's why you can't always listen to the parts people. The part number is. 12674634 it's the complete water neck with thermostat.

answer a question with a question, ha ha . there are many factors that go it to what actually makes rings seal. And I'm not going to go in to the whole thing. Let's just take it as your motor is no different then mine, or anyone elses for that fact. (Not trying to be an a... ) from the stand point that as long as it hasn't been torn down and rebuild by a reputable machine shop that understands correct cylinder finish, clearance end gap of rings ect.. ect. Now , if the motors are the same , I'm just asking as you stated you have excellent ring seal, what do you contribute to be the factor. Something you have contributed to help or improve ring seal? Or did you get a excellent built engine from the factory? I'm not trying to discredit you or anything like that, I was trying to get you to explain the dynamic of how oil plays a , notice I said a , effect in ring seal. You are much better at this internet thread typing and explaining then I am clearly.

That is very true, ring seal is a large factor. What do you contribute to be the factor in your great ring seal.

What weight?

Grumpy bear , what oil do you use?

That's correct, you have to look up the new Jr kit for say a 2018 Silverado or similar, and you can see the part number for just the tube. I called them about just ordering a MIT kit with out a filter like they used to offer. They currently don't have a kit persay without a filter . However they were willing to sell you the individual parts.

I see what your getting at. Although I'm not sure my point is clear. I realize bbp did the test on the 2016 6.2 l with the Airaid MIT and filter. Since then Airaid has redesigned the MIT tube for the 6.2 and I wonder if it now may be better then the previous version tested by BBP on the 6.2.

Not sure who you posted this for ? In reguards to the 2014 + 6.2 nothing really. That would have been the older design as well?

Something I'd like to add, and I wish it would have been available when BBP did there test, the Airaid MIT has changed design for the 6.2l since the test. I'd like to see how the new design MIT tube would perform in the same test. If you go in thre website you can see the difference in the 14-15 and I think even the 16 model year compared to what they offer for the 17-18 6.2l Trucks.

I have a 2018 Silverado 6.2 with the max tow package. I have a 1.5 inch level front block set up. I actually like the 1.5 as it seems the trucks with the max towing package the suspension is a little different, I'm only sitting about 3/4 of an inch lower in the front now . My question is , I want to put on 285/55/22 and I'm wondering if I'll have to much rubbing. I do know from past experiences that the stamped steel upper control arm does not have as much clearance vs the aluminum control arm. I previously has 275/60/20 Cooper discover HT plus tires on my factory 20 inch wheel. They did rub slightly at full lock. However even though the Cooper tiers were still a 275 they were considerably wider than factory, the tred was over an inch wider and the sidewall to sidewall was almost 2 inchs wider. I was curious at to how wide the 285/55/22 would be. I'm sure it's going to depend on what tire brand I choose. I need to start looking at what's out there for choices in that size or possibly a 285/50/22.