Currently rocking a 5.3 with a 226/226 0.598/0.598 LSA 111 cam, GenX 205 Heads from Trick Flow, TBSS intake manifold, and flat top pistons out of a 4.8. Thing is it's a 6,000+ pound suburban. Need more power and the 5.3 aint cutting it. Bought a LQ4. Want to make a 408 out of it using the assembly kit from Eagle. I think the 205 heads I have on the 5.3 should flow as much at the 317 heads but shoot the compression to the moon. Maybe 11:1? Gonna reuse the TBSS intake manifold. Starting a pile of parts. Engine wont go into the truck till next spring. Have a lot of road trips coming up this fall and winter. Need some tips. Like a comparable cam.

 

what do you want to do with the burban? race it, daily it, spin tires?
those heads with that cam will create a lot of torque down low.

 

Turn key go combo that does all of the above, but not looking for screaming numbers. Currently run 700+ mile road trips no problem and except for sucking way too much gas I'd like to continue to do that. Have the camper but 4.88s and 33s translates to no shortage of torque with as big a cam I have in the 5.3. Figured with a 408 i could go bigger. Looking to buzz maybe 6,200-6,400 on the shifts. Current combo is around there. I like having the tight LSA. Had a Thumpr, ASA, and now this cam and all were great for torque without needing a lot of rpm up top.

 

you can defanitly step up the cam with the added cubes, bump the compression up and it will be a torque monster.
my setup now has tons of low end torque. so much that I am changing heads and cam to lose some bottom end.
but with your tighter lsa yours will pull even better then my setup down low