Ls6 Camshaft Swap

[NYAFACE86]

so i prob shouldnt buy this cam? am trying to hit 400+ at the wheels....
but still a driveable truck dd well not really dd but like a weekend truck or toy lol

[randomhero]

so i prob shouldnt buy this cam? am trying to hit 400+ at the wheels....
but still a driveable truck dd well not really dd but like a weekend truck or toy lol

You would be one of 2 or 3 to ever do that to my knowledge.

If all you want is a power number then yes, I'd go with a huge cam like that. It's not going to be fast, but it will probably make the power you're looking for.

I assume you plan to go swap the heads and intake right?

Do you have any reason for trying to do all this with a 5.3L? It would be much cheaper to swap to an ls1/lq4/lq9 or bigger.

[NYAFACE86]

i will being porting my stock intake mani. or looking into getting a ls6 intake or just uping for the fast 92mm ... but i hear ya bout the amount ill spend on it vs just getting an lq4 which is what i would want to get.. i cant find a stock ls6 cam! lol.. sucks but i cant ... a used at least.. also.. if i port my 5.3 manifold, can i put an ls6 or ls1 ls2 tb on it? or would it even fit? am not sure if they have a better openin the truck one.

[NYAFACE86]

ill just port the heads.... and i dont just want the power, i want it to be quick...

am planning on putting a truetrac locker 4.10 gears, and 80e tanny too

and nelson pcm or ecu which ever it is

[randomhero]

400 rwhp with a 5.3L and that setup is going to be impossible without forced induction or $10,000. The 4l80e has even more parasitic drivetrain loss than the 4l60e does and plus the 4.10s will also hurt you on the dyno.

I'm not sure if you've checked before, but most highly modified 5.3L trucks are making 340-360 and that's through a 4l60e.

If you want it to be fast then I would do something in the low 230s like a 230/236. Then I'd run an ss4000 converter at the least with some 4.56s.

That combo wouldn't be daily driveable, but it would be about as fast as you can make a 5.3L without dropping a ton of money.

[RedHeartbeat]

if you want 400 hp from a 5.3, copy Lambodonomo's setup. Getting the heads ported is definitely a plus in your favor.

[GasGuzzler]

...and don't replace the rods for a cam swap...the push rods however need swapped....

[duc1256]

Thanks For The Help. I Looked For The 7.425 Length Pushrods On Jegs And Summits Websites And Didnt Find The Size. Where Can I Get The Above Mentioned Length Pushrods, Also What Is The Part Number. For The Valve Springs, I Am Assuming I Should Go With The Bee Hive Style. Can I Also Get The Part Number For The Springs. To All Who Are Helping, Thanks. Also Please Provide Websites(if Not In Jegs Or Summit) One Other Question: I Am Installing This Ls6 Camshaft, Custom Catback Exhaust And The Already Installed Cai, Should I Have Nelson Performance Advance The Ignition Timing 4 Degrees Along With The 93 Octane Custom Tuning For These Parts? Thanks In Advance.

[Sleaper]

Thanks For The Help. I Looked For The 7.425 Length Pushrods On Jegs And Summits Websites And Didnt Find The Size. Where Can I Get The Above Mentioned Length Pushrods, Also What Is The Part Number. For The Valve Springs, I Am Assuming I Should Go With The Bee Hive Style. Can I Also Get The Part Number For The Springs. To All Who Are Helping, Thanks. Also Please Provide Websites(if Not In Jegs Or Summit) One Other Question: I Am Installing This Ls6 Camshaft, Custom Catback Exhaust And The Already Installed Cai, Should I Have Nelson Performance Advance The Ignition Timing 4 Degrees Along With The 93 Octane Custom Tuning For These Parts? Thanks In Advance.

COMP Cams - Pushrods, Assembled - SummitRacing.com

Patriot Performance LS Series Gold Valve Springs - JEGS

I would just tell Nelson what you are installing and let him do the tuning. The Patriot springs will be good if you decide to change cams later on and go with something that has a little higher lift.

[randomhero]

So are you installing a stock ls6 cam or that monster you posted earlier? They are on two different ends of the spectrum. The stocker is very mild and that other one is way too big even for a weekend truck.