My 2500HD build What do ya think
 

So after a long time studing the fourm ive decieded on the following set up for my 01 2500HD 4x4 sbcc. I think its a pretty solid set up but of course open to any suggestions and comments

lq4 bored .030
I beam forged rods
Forged Flat top pistions
212/218 @.50 115 comps high lift
7.400 push rods
HS 1.8 rockers
patroit gold dual spring kit
p and p 317 heads with valve job
8.1 marine injectors
bbk 80mm tb
pacesetter lts
efans
ud pulley od alt pulley
lingenfelter oil pump
ls2 timing set
2600 ish stall
rebuilt 4l80e
other bolt on stuff

so what u all think im shootin for 350ish rwhp and 400+ tq might have 100shot down the road
any weak links in this set up?

I'd scratch the HS 1.8 rockers off the list since you're already going with the Comp high lift cam, then go down to some PAC 1218 springs which will be kinder than your lifters, but that's just my opinion. With the added lift and worked 317's you will have higher HP numbers though, especially up top.

As for the throttle body, it seems that they're only worth about 5-8 hp, but if you're hell bent on it, I have a BBK 80mm for that is cable driven that I bought used and never installed, and am currently planning on selling...shoot me a PM if interested.

I've been told that these throttle bodies have a tendency to stick since they don't have any hole in the throttle blade. The gent that sold me the throttle body mentioned it to me and said that drilling a 1/8" hole in the blade should cure the problem. As I mentioned, I never installed the throttle body, so I'm not really sure if this is an issue or not.

Even with the 1.8 rockers and high lift cam im still right at .600 of lift i know the 317s die out after that but i figured i could get the most out of em with more lift and i already have the patroit duals put on the heads. Yeah im still on the fence with the bbk lots of people have mixed feelings with them never a 100% positive review might just get the stock one pp again thanks for the imput

i would put a bigger cam, maybe a 220/220 581/581, that 212/218 is small in a 370. I would even consider the 224/224. That 370 will soak up that cam

X's 2. I'd even go bigger than the 224 cam. I'd run low 230s duration, but youre driving it. Keep that in mind when people recommend stall converters also.

No real need for 1.8 rockers. Just get a custom cam if you want more lift.

I'd also skip on the p&p'd 317s. I'd look for a set of used 243's.

Ik the 212/118 is a baby cam but with the truck being close on the 6000lb side i need all the torque i can get to move this stump. How much higher can i go up in duration untill i start sacrificing torque? I also want a cam that would complement a FI set up maybe in the furture.

I think people recommend the vinci trucker cam for fi or na, but they are crane and might not be made anymore.

Crane was bought by S&S Cycles after Scorpion backed out, they may be up and running again...I noticed that Vinci's website has been updated recently...the Trucker is a great cam for sure, 216/224 .551/.551 115

I think youre absolutely on the right track as far as cam choice is concerned, a lot of people on here overcam their engines. In my Z71 I had a 420 with a 220 cam with a stock 80e and converter, it was lazy off the line, no way in hell Id want to lug around the extra weight and have even less power down low.

I wouldnt mess with a different converter either as the stock 80e converter stalls to about 2600 anyway, I would however step it up to a 3K which would work well with that cam. Check out Circle D, Chris is a good guy and has pretty good prices too.

What CR are you planning on running? I see you said flattop which Im assuming have the normal valve reliefs which with a set of ported 317s with a little chamber work ought to put you right under 10:1 which will be great if you plan on towing. If you dont plan on towing much Id get the heads milled a little to bump up the CR a bit.

I personally am a fan of the Patriots, Ive installed quite a few sets and havent had any problems and theyre failry quiet. They will also come in handy later on if you decide to step up to a stouter lobed cam. What lifters are you going with? I like the LS7s since theyre fairly inexpensive and seem to do well. I put a set in the newest motor I put together. Be sure to measure pushrod length.

I too wouldnt mess with the harland rockers, not a very good bang for the buck, Id spend that money on TBSS intake. Seems everyone is netting abotu 15/15 to the wheels with that swap and if you shop around you can do it for about 400 bucks. With your setup you may see a bit more than that dues to your engine flowing a little more air due to the heads and cam. The 15/15 was on a stock LQ4 with a stock cam.

I probably wouldnt mess with the oil pump, Id just do like I did and port it a little yourself and shim the spring to get you a bit more pressure and best of all its free.

Seems youve done your homework and are putting together a pretty decent combo. :)

You can't compare an aftermarket 3000 stall to a stock 80e 2600 stall and think that the performance difference is simply that extra 400 rpms of stall. The stock 80e stall is a massive slug, with 30lbs more rotational mass to turn. All I heard nonstop about the 4l80e is how miserable it will be off the line. Well, with the Yank stall there's no noticeable difference compared to the 4l60e. The 4l80e is better in every regard.

I would highly recommend the Yank 10.5" 3600 stall for your 4l80e. It's extremely civilized, only needs 2000 rpms to move briskly with traffic. Furthermore, if you give it the slightest stab of the throttle it will shoot right up to 3000 rpms and you got all you're torque right there.