I think you can definitely get away with a stock converter. I'm currently running a stock converter and I'd say my cam is slightly bigger at a 222/226 compared to yours. It will definitely be fine, but it would also definitely benefit from a converter as well. Why did you get rid of the blower? That's by far the best way to make workable power without a converter.

On the intake side... if you are truly going for every pony you can get NA then the fast is without question the way to go. If this is more of a budget build you will still gain good power and get the injectors you need (then sell those 60's to get back ALL of the cost and then some). I'm surprised you have so many nice parts like the heads but have no desire for a looser converter.

 

The cam I'll be using if I go n/a will be a 223/227 113lsa Comp LSL lobe grind. That ought to be slightly bigger than yours with a little more overlap (still negative though) due to the narrower LSA. I know my track times would be better with a looser converter, but I drive 40,000 miles a year on the street and maybe 4 miles per year at the track.

The truck in my sig was wrecked a few weeks ago. Nobody hurt, drivetrain is OK, but the truck is totaled. Have an '04 to replace it. Still in the decision making process as to what to build back. I may just transfer the drivetrain to the new truck or may do something totally different. Just considering all options. Although the setup in the wrecked truck was nice, something in me wants to make a change or two on the new rig. Character flaw I guess

 

my stock manifold made more power on the dyno than a LSXRt more on the flow bench too. I'm not saying this is the best option out there... BUT... dont be led to believe there's only one way of doing things. Its not as pretty as a FAST but it does alright

Its a ported L92 manifold setup. Very similar to the GMT900 manifold for cathedral ports, just in a GEN IV version. There are a few other small differences.

 

Not too worried about "pretty". If it works and works well while keeping a few extra benji's in my pocket, that's beautiful to me. Did you have the manifold ported locally?

 

Ive tested them both extensivly, on the engine dyno and on the SF-1020 flow bench. The LSXRT is much better in all cases.

I dont see how you can compare anything L92 to the LSXRT, since the LSXRT is cathedral port only?

 

He was asking about options for his 6L and with the appropriate heads this could be an option. I fully understand the differences and pros/cons of each. And if he's looking to wring every available drop out of his setup with an out of the box part then the FAST isn't a bad choice. I'm just saying there's other manifolds out there that do well and that you don't have to sell the wheels off your **** to buy.

I'm well aware of your experience and I'm not taking away from that at all, but that's not the only manifold in the world. And in my opinion, I'd run the car version before the truck version on ANYTHING I'm building.... You have your two pennies, there's mine

 

Well I made up my mind FAST LSXRT 784.39 and free shipping. I was going to go tbss intake 200$ then have it ported $200 , purchase the engine cover $100, new seals and fuel rail fittings around 200$ your at $700 bucks anyways to get the best from it. $500 nonported
I will post link to purchase and unboxing friday night.


Then you still gonna need an x-link or wiring adapter. I also have seen them at katech too http://store.katechengines.com/throt...rness-p20.aspx unsure on the details of it.

and a new throttle body isn't cheap. I am DBW so WOW cost is huge for a 102 even stockers new are pricey.
While your into it might as well finish it right. Why pay twice.

 

Sorry man, I forgot I posted in this thread.

If you get a car style fast, this https://www.performancetrucks.net/fo...e-swap-359987/ will tell you everything you need to do the swap.

I honestly don't see the point of going with a bigger cam and running the stock stall converter. Especially with the 80e. The stock torque converter is huge, and under stalled. You don't really need a huge stall to run with that small of a cam. If you went with a ~2800, you probably wouldn't even notice. A triple disk with a trans cooler would handle towing just fine.

 

where did you get it for that steal of a price dude???

 

x2