07NBSChevy

Is it possible to achieve those numbers with a 2007 gen IV LMG 5.3 with 243 heads, 1-3/4" Arh Headers, Airaid Jr. Kit, comp cams 212/218 114 LSA cam, Blackbear Tune, 4.30 gears and 31.5" tires.

My buddy says it cant be done with those mods only. He says i wont break the 300hp mark.

JordanH

iTrader: (16)

I don't know much about cams, but I'm sure that you could be right at 300whp with the right cam, tune, and other mods you mentioned!

black00chev

iTrader: (2)

Look in my sig, similar setup but im slightly milder. 300hp no problem.

Vortec350ss

iTrader: (20)

It's not impossible, but slightly more cam would have helped you achieve those higher HP numbers while peaking at a higher RPM/

Jake75

iTrader: (2)

should get it. I hit 380 with 243s cam headers stall...the tires may hurt you a little

George C....

Just dyno'd my jeep
It has a 2001 5.3 in it rides on 35x12.5x15s

Mods are gmt900 intake, baby thumper cam and true dual 2.5"
This combo was dyno'd on a mustang Dyno and made
Pulls were made in 3rd instead of 4th (cause of tire speed)
292/306

So yes a newer 5.3 with more compression and better heads on a Dyno jet will read higher

07NBSChevy

Thanks for the responses. My goal was to hit at least 300WHP on a mustang dyno. I would have went with a larger cam with a stall but i do tow 6500-7000lbs. I have yet to do the cam install. Im getting all the parts ordered now. 212/218 114lsa cam, dod delete kit, ls2 timing chain, correct cam sprocket, ls6 valve springs, complete engine gasket and seal kit including valve seals.

We have a $100 dollar bet that i wont hit 300hp. But we shall see. By the looks of it im seeing people around 300-320whp with a close setup to mine.

turboal1

I made 318hp/ 320tq w/26"tires small VVT Comp cam.799 heads

bobfig

imo you will.

what ever you do make sure you update this thread.

gamble686

iTrader: (3)

You will be pretty close. I would guess you hit the goal. Kind of depends on the factory motor. Some are better than others.