Jimmy_d

iTrader: (3)

Is the ls1 intake gonna make a torque difference over the stock 4.8 intake and whats the bore on a 4.8 tb 75mm?

Jimmy_d

iTrader: (3)

Wanting to change just the plenum so i can run corvette covers but also make a little more torque, not worried about more hp

2005 Silverado

iTrader: (19)

Might as well get a ls6 or ls2 or something...but that just my opinion.

Dustin

Phantom

iTrader: (16)

in theory you'll loose lowend torque with the ls1 intake...it was determined swapping to that intake over the truck intake was mainly for looks...

00_Hotrod

Don't go there, I put one on mine about a year ago and it just killed the bottom end, And i couldn't tell it made it run better all through the RPM, It seemd like the motor was bogging, maybe needed to tune engine for that intake...? I was thinking it had to do w/ compression, Gear & weight, I ended up putting the stock one back on and the truck ran tons better.....FYI...

thunder550

iTrader: (70)

Nope! The LS1 intake manifold flows worse than the truck manifold. There is hard flow bench data to prove it. If you want a low profile car manifold do either the LS6 or LS2 as stated above, or if you want to spend the $$ do a FAST 90/90 setup.

MPFD

iTrader: (5)

Its not worth the trouble and cost IMHO, your gonna have to get all F body accessories to run an intake that cost more and doesn't perform enough better to pay for its self. The Truck intake is fine till you start to get into 230 or above cam duration.

thunder550

iTrader: (70)

Not true. An idler pulley relocator and a later model truck water pump with a front inlet instead of a top inlet are all that's needed to run a car intake manifold.

MPFD

iTrader: (5)

I stand corrected, but it is still more work then its worth unless your going with a big duration change.
Especially if it's just to be able to run Vette Coil covers!

nightrunner

iTrader: (4)

your throttle body is a 78mm. the ls1 intake flows wrose than the truck intake. any car style intake has much worse torque numbers than a truck intake.

if you do go with a car style intake go LS6. the ls2 has a 90mm throttle body inlet but it also flows worse than the ls6 even though the ls6 only has a 78mm inlet. or for an aftermarket go FAST.

for looks go with either the Edelbrock Pro-FlowXT intake or get some 6.0 covers