What did you do to your NBS GMT800 Tahoe/Yukon Today?

[iamdub]

Put one on each head at least...

Accessory bracket on the other side. Although, if someone believes the cam sensor bit, they might believe the alternator is a centrifugal supercharger.

 

[MassHoe04]

How bout this one?

@Walchit Do you have a link handy to save lazy folks, like me, from having to Google?

 

[Walchit]

@Walchit Do you have a link handy to save lazy folks, like me, from having to Google?

It was on Facebook, I'm not a knock sensor expert, but I'm not sure if the guy was seriously installing them there or not. It was probably on the page "GMT800's with threatening auras" lol

 

[Rocket Man]

@Walchit Do you have a link handy to save lazy folks, like me, from having to Google?

I would use those brackets by ITC Billet and their matching valley cover. They make quality stuff.

 

[iamdub]

I'd be worried about road debris catching the wires, but I guess they could be zip tied up close.

I think those wires were just drawn for illustrative purposes. That's the location for the Gen4 knock sensors, except they're screwed directly into the block. The wires are routed and attached close to the block with clips, and the cross member protects them, too.

 

[mattbta]

Ordered some metri-pack connectors (100, 150, 280) for wiring in the Lux amp from @Sam Harris that @Fless shipped me. Thanks, guys!

Need to order the SPS2 sub and muster up the cajones to try programming my radio via my VCX Nano J-2534/Tech2/MDI clone thingy.

 

[Sam Harris]

Thanks brother. It's been a while since I updated it!

Re: LSA: Nice.. I think 112 will be good then..

Stock / Stainless valves are good.. Awesome..

Yes, I can order a number of different options, or build to suit. They do have a handy compression calculator, but it's tough being clueless.. I know I can use a thinner head gasket to bump compression a bit, but I don't know if I can really get all this figured out until some of these things are in place.. Thanks much for the tip on the Fel-pro..!

The heads are new -cast, and this is one of the things I'm trying to decide on. (though they do have a package with customer supplied heads as well) As-cast vs aftermarket casting? Not sure what that means. I think a ported head would be the best option... Here's one that I thought might me a good fit: https://www.texas-speed.com/p-8013-prc-15-degree-220cc-cnc-cathedral-heads-cam-package.aspx however, I also don't know what would be a good choice for cc volume.. 220 all the way up to 247cc..?

Timing chain: I figure between your and Mark's recommendations, I'll probably go with a single roller Cloyes.. Of course that still leaves Z06 or C5R. I guess the Z06 will do fine there.. less expensive..

Melling HV is the plan. I will do this..

Pretty sure the TB is a 3-bolt. I removed it about 18 months ago, but don't remember. lol.. It is a DBW, and since I have Flex, I think I should be good there - hopefully.
Do I need cooler plugs..? If so, I think I'll need to look into a LSA, to justify the plugs..

ETA: Gears are 3.73..

Ok, today, ordered a few things.. Got the level 3 Invincible trans 4L60E from Performabuilt, along with a 10.5" triple disc 2800 stall torque Converter.. Heads are the PRC "As cast" 225cc kit from Texas Speed, with stainless valves, new dual springs, titanium retainers, 212/218, .600"/.600", 112 LSA Cam, chromoly pushrods, and head gaskets (stock thickness), ARP balancer bolt, crank seal, cam bolts, cam retainer plate and bolts..

I've decided to put off the intake upgrade, since I still have more research to do, and seems debatable how much difference that will have anyway. I may save this part for the 6.0 build down the road..

Still need to order the oil pump, timing chain kit, head bolts, water pump & gasket, oil pan gasket, front cover gasket, valve cover gaskets, valley cover gasket, knock sensors and harnesses, lifters, and trays..?

I have the rear cover set, which includes the rear main..
Trunnion upgrade arrived today, but does not have the install kit. Should be able to make do without that.

looking for feedback regarding the lifters. I don't want the LS7, since I see those may need machining, and I want to avoid this.
I have read that the only worthwhile lifter trays are OEM, but not sure if that only applies to the Gen 4 motors, or if I should order (or even need them) for the Gen 3?
Looking at these lifters, and suspect they should be fine: https://briantooleyracing.com/comp-cams-lifter-set-high-energy-gen-3-4-ls-cc850m-16.html
I don't see any need for the tie-bar style with the planned mods, but if they are good insurance, I'm also open to that.

Any other thoughts or recommendations are more than welcome!

And, I do think it's time to make a build thread... I'll have to take a week or so to do that. lol

Pic for attention:

 

[Rocket Man]

Ok, today, ordered a few things.. Got the level 3 Invincible trans 4L60E from Performabuilt, along with a 10.5" triple disc 2800 stall torque Converter.. Heads are the PRC "As cast" 225cc kit from Texas Speed, with stainless valves, new dual springs, titanium retainers, 212/218, .600"/.600", 112 LSA Cam, chromoly pushrods, and head gaskets (stock thickness), ARP balancer bolt, crank seal, cam bolts, cam retainer plate and bolts..

I've decided to put off the intake upgrade, since I still have more research to do, and seems debatable how much difference that will have anyway. I may save this part for the 6.0 build down the road..

Still need to order the oil pump, timing chain kit, head bolts, water pump & gasket, oil pan gasket, front cover gasket, valve cover gaskets, valley cover gasket, knock sensors and harnesses, lifters, and trays..?

I have the rear cover set, which includes the rear main..
Trunnion upgrade arrived today, but does not have the install kit. Should be able to make do without that.

looking for feedback regarding the lifters. I don't want the LS7, since I see those may need machining, and I want to avoid this.
I have read that the only worthwhile lifter trays are OEM, but not sure if that only applies to the Gen 4 motors, or if I should order (or even need them) for the Gen 3?
Looking at these lifters, and suspect they should be fine: https://briantooleyracing.com/comp-cams-lifter-set-high-energy-gen-3-4-ls-cc850m-16.html
I don't see any need for the tie-bar style with the planned mods, but if they are good insurance, I'm also open to that.

Any other thoughts or recommendations are more than welcome!

And, I do think it's time to make a build thread... I'll have to take a week or so to do that. lol

Pic for attention:

So much fun stuff.
Edit: you’re gonna love how that Performabuilt shifts.

 

[mattbta]

looking for feedback regarding the lifters. I don't want the LS7, since I see those may need machining, and I want to avoid this.
I have read that the only worthwhile lifter trays are OEM, but not sure if that only applies to the Gen 4 motors, or if I should order (or even need them) for the Gen 3?
Looking at these lifters, and suspect they should be fine: https://briantooleyracing.com/comp-cams-lifter-set-high-energy-gen-3-4-ls-cc850m-16.html
I don't see any need for the tie-bar style with the planned mods, but if they are good insurance, I'm also open to that.

I used the Morel drop-in lifters now part # 7717 (mine are 6504) when I replaced my heads. Been happy so far. Absolutely get new OEM trays and I suspect you will want a pushrod length checker to get appropriate pre-load with your other valvetrain mods.

 

[Sam Harris]

I used the Morel drop-in lifters now part # 7717 (mine are 6504) when I replaced my heads. Been happy so far. Absolutely get new OEM trays and I suspect you will want a pushrod length checker to get appropriate pre-load with your other valvetrain mods.

Thank you..!