LS AzZkIkr

I recently bought a Silverado with a stock 5.3 that has a P1SC, intercooled, long tube headers, dual 2.5" exhaust, and 3600 stall. So my question what do I do to it next? I know I will be upgrading the fuel system and thinking about what intake/cam to go with. Maybe LS6 stuff or aftermarket? Not really trying to break the bank if I don't have to but if you fellas know of better stuff for the money I am all ears!

Thanks LS1Tech!!

Double-L

I have a 5.3 and most likely will go with LS6 cam and Camp Bee Hive springs

js2fst

iTrader: (12)

Ls9 or brute speed

LS AzZkIkr

Thanks for the info! Would swapping out the stock intake for an Ls6 be worth the trouble? If so what would I need to do the swap properly?

LilJohn

The Ls6 intake is no better than the stock truck intake.

Id do a cam for it thatd be...226/235. 115+3

LS AzZkIkr

The stock 5.3 intake does that well above 500hp? The truck already makes 430. I never would have thought that it would perform similarly to the ls6 manifold.

jridenour31

The only reason people don't run the truck intakes is because they're so tall.

Sales@Tick

iTrader: (3)

We just put our Stage 1 Blower Cam in a 5.3 that we're putting in a C5 Vette with a D1SC.

Specs are 226/234 .59x/.61x 115+3. It should run very well and make great power. I normally cam 5.3's very similarly to a 5.7 as they both utilize 3.622" strokes and 6.098" rods which means they spend the exact same amount of dwell time at TDC and BDC.

Also our Stage 1 Street Heat cam which is 221/226 .609"/.605" 115+2 might work better in your heavier truck and still be great with a Procharger. Anything bigger than those two is going to make that truck a dog down low.

LS AzZkIkr

Thanks for the info! The truck weighs 4600 if that helps. It will see some mild street time and mainly looking to help the mid-top end. Also some sound at idle would be nice as well...

hellbents10

iTrader: (10)

At 4600lbs with a 5.3l I would stay in the low to mid 220s on the intake. Too much more and it will not 60ft that well even with the loose converter.

Sales@Tick

iTrader: (3)

The 221/226 is pretty docile at idle, and sounds a lot like a TR224 on a 114, if you wanted a little more thump we could do a custom cam and put it on a 114 or 113 even.
Agree 100%.

94 slow

Martin,
Did you ever get dyno numbers from the above corvette?

Sales@Tick

iTrader: (3)

Car has not had the blower installed yet. It is in Florida with the owner.