j.mo

If you plan on going to a larger stall, i personally would say go bigger than the 216/222.
I have a 214/222 with a TB stall, stalls 2600-2800, and in the few days I've had the new cam in, I already feel like I should have gone a little bigger on the cam

The Sanch

So a 216/224 .551/.551 @ 115 LSA would be great? Let's say worst case scenario I decide not to bigger stall (unlikely), but it that case, I would still be okay? Also, how big of a power gain is that?

69Camaro427

https://www.performancetrucks.net/fo...-458842/page2/

Great dyno info here, look a dyno on post #12 compares a 5.3L with the 212/218 vs Lq9 with 216/224 massive amounts of tq. Makes 60ftlb more at 2500rpm than the 5.3L so I would think with around 300ftlb of tq at the wheels around 2500rpms would be plenty to prevent it from running like a dog with the stock stall.

Of course I think a 3000-3200 stall would be perfect match up, but I think you will be happy with the stock stall for a while to get around to buying/installing the new stall.

Your truck sounds good by the way

69Camaro427

New tune for cam silverado - YouTube

Heres my truck with the 210/218. It's a dog from a dig with my 275/55/20's and highway 3.42s, but it's a beast from 20-30 rolls and once it hits 4500rpms its like a little 50 shot just kicked in.

The Sanch

Thanks for the compliment! Looks like 216/224 is the way to go. Also guys, with my current mods, what output numbers do you think I will reach? I was hoping to join the "400 Club".

69Camaro427

You will probably need ported heads and maybe nnbs/Lsxrt intake manifold to reach 400. Your 4L80e, 4.10s, 14 bolt and big tires are going have more drive train loss compared to a 4L60e with 10 bolt and 4.10s.

Its hard to put a number on it b/c dynos are different, but I would think around 350-360 hp with 380-390 tq. A set of ported heads would net you 30ish and intake 20ish

The Sanch

Thanks for the input! I was looking at doing L92's, are their any special modifications that will have to be done? As far as intake, I was always told FAST, or generally something aluminum.

69Camaro427

IMO I wouldn't do the L92 heads, they flow really awesome stock and are a little to much for the 6.0. You will lose some low end power with them, and have to change the intake manifold to square port.

The best set up would probably be a set of texas speed stage 2 or 3 Ls6 heads with a LSXRT intake manifold, but that would run you close to 3K and that would almost buy a used supercharger.

The stock truck intake is by far the best for low end power, most after market intakes only shine past 4500 rpms but give off some down low. The lsxrt intake is the only one that doesn't give off and low end power and gives 20-25rwhp gains 4500+ rpms

Aluminum intakes can get heat soaked and the only aluminum intake most people run is Holley Hi Ram for turbo aps

69Camaro427

I would just change the cam, lifters, gaskets, timing chain, oil pump, etc. Have your heads milled or pick up a set of 243s to bump compression up even more and see how you like it. If you want more then it would probably be wiser to start looking at boost rather than build an expensive n/a motor that has to sacrifice dd habits.

The Sanch

Thanks for the input! That was actually the route I was going to go with for starters...then see how things turn out and go from there. But I am sure the Trucker cam will do for now.

Mind, my current heads are 317s, what is the actual difference power/performance wise? I know, I could easily Google this, but I would rather ask straight up and get good feedback.