03 tahoe 4.8...want more power

[408.Luke]

Luke is that you?

get a small cam some headers a tune and let it be...if you want more then forget the other crap and do a small front mount turbo

x2 and no V im right here

[Botlfed]

I think I heard that already in this topic. Hey, get your DS made yet?

why hell no.

[SCK1K]

x2 and no V im right here

he meant the fast luke

yea its me. what kinda cam? tr old man truck cam?

[mean05]

he meant the fast luke

yea its me. what kinda cam? tr old man truck cam?

Lmao exactly

i'd just go with a LS6 cam or a smaller cam like that, you ever talk to Sam much?

[blueflamed03]

trust me, I'm in the same boat.

already have CAI, and plans are :

LPP longtubes with ORY
gears are 3.42's, and put on 31" tall tires, so 4.10's
custom tune


then when my warranty is out in Feb, get a 6.0, and add a cam, have tune redone. Headers bolt up, gears will be done, and depending on then what cam I use, add converter.

[408.Luke]

he meant the fast luke

yea its me. what kinda cam? tr old man truck cam?

[clementeunknown]

what head and cam combo you guys recommend? this is on a daily so im not looking for something wild.

Well for a 4.8 your best bang for the buck is probably to port and polish your stock 862s & upgrade to 2.02" intake valves & 1.60" exhaust valves. You can usually do this for under $1000, no need to buy a $3500 combo from Trick Flow on a 4.8. Then mill them .030" to kick up the compression. The cam I would say a Texas-Speed 220/220 .581"/.581". A longer duration cam will probably bleed out too much compression and less compression = less power. You can always change your set-up but this is buget friendly suggestion

[George C]

Well for a 4.8 your best bang for the buck is probably to port and polish your stock 862s & upgrade to 2.02" intake valves & 1.60" exhaust valves. You can usually do this for under $1000, no need to buy a $3500 combo from Trick Flow on a 4.8. Then mill them .030" to kick up the compression. The cam I would say a Texas-Speed 220/220 .581"/.581". A longer duration cam will probably bleed out too much compression and less compression = less power. You can always change your set-up but this is buget friendly suggestion

upgrading the valve size inthe 4.8/5.3 head actually hurts flow. a 2.0 was the typical upgrade. a 2.02 is overkill. PRC did back to back tests with 5.3 heads with stock valve vs the 2.0 and the 2.0 valve lost flow.

the typical 2.02 valve theme was used back in the sbc days. these heads flow much better then those heads of those times with smaller valves. some of the better LS heads arent even using 1.6 valves rather alone a 4.8 needing them.s also if youre going to toss 1k at those heads you might as well buy a set from a known manufactor for that price.

the turbo kit from Trick is a nice piece and would do much better for the cost vs performance then other things suggested

[scarbrow]

I would just go with the Thunder racing 224/224 cam
get some comp 918 springs
maybe some hardened pushrods
put in an LS2 timing chain, and a ported oil pump
some longtube headers
and get a custom tune and you should have a big gain on your power, should be plenty for a daily driver.

The TR 224 cam is a great one for street use.

[Botlfed]

just spray the piss outta it.