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iTrader: (1)

So I have two sets of heads for my 4.8, one set of heads are stock 5.3 heads and the other is a set of stock ls1 heads.

I was plaining on using the 5.3 heads but I've been reading a hand full of builds and some are use the 5.3 with ls9 head gaskets and some are using the ls1 heads with l92 head gaskets.
I know that the ls9 head gaskets are 7 layer and the l92 is a 5 layer head gasket.

So now I'm lost on witch ones to use.
I would like to be running around 15 lbs of boost with the 70 mm on3performance turbo

So, what do you guys think would be the best heads and head gaskets for it??

Chicago TDP

iTrader: (3)

Don't use 317 6.0 L heads.....all I can say...drops the compression WAY too much.

Chicago TDP

iTrader: (3)

241 & 853
Heads: 1997+LS1 5.7- liter passenger car
Combustion chamber Volume:66.67cc
Intake port Volume:200cc

243
Heads: 2001+ LS6 5.7 liter passenger car
Combustion chamber Volume:64.45cc
Intake port Volume:210cc


706 & 852 & 862
Head: 1999+ LR4 4.8-liter Truck
1999+ LM4 / LM7 5.3-liter Truck
Combustion chamber Volume:61.15cc
Intake port Volume:200cc


873
Head: 1999-2000 LQ4 6.0-liter Truck
Combustion chamber Volume:71.06cc
Intake port Volume:210cc


317
Head: 2001+ LQ4 6.0-liter Truck
Combustion chamber Volume:71.06cc
Intake port Volume:210cc


035
Head: 2002+ LQ9 6.0-liter Truck
Combustion chamber Volume:71.06cc
Compression Ratio:10:1
Intake port Volume:210cc


From this list I would pick the LS1 heads....

87silverbullet

iTrader: (11)

One stock 4.8l and a stock ls1 head has been working good so far for denmah on here.I know it sounds crazy but it working. His fairmont is about to run bottom 10's maybe high 9's according to him, with a 4.8l.

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iTrader: (1)

Does he have any videos Or something to prove it ??? That sounds pretty quick, but then again skinnies does some crazy **** with his 5.3 ltd. Only if I had there knowledge

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iTrader: (1)

Never that's the guy with the 4.8 turbo mustang, that thing is quick

Cronic_Moronic

Denmah has around 700+ vids of all kinds of stuff on his youtube.

And don't do exactly what he does - He has already chucked an axel on the highway and trashed one car.

93camaro_zzz

iTrader: (13)

Without me searching lol whats the difference between the last three? Any differences in deck thickness or maybe stock valve size?

91sonomast

I'd use the LS1 heads. I bought a set for my 5.3 project. It drops the compression a little so you can push more boost and has bigger intake valves for better flow.

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iTrader: (1)

I've just watched a few of his videos, some of his videos crack me upa lol

a4ls2goat

I had the ls1 Heads on a 4.8 and it was a dog outa boost. Stick with stock compression

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iTrader: (1)

Did you run a stock cam?

turbocamaro125

iTrader: (3)

My 2008 4.8 has 243's and has 9.0 comp ratio with stock gaskets and ls9 cam runs good out of boost gotta mess with the tune more tomorrow 8 to 10 psi from a s472 1.10 t6

a4ls2goat

Ls2 cam on a lm4 to be specific

TheLS1Lover

He is actually only running one 241 Head lol. So low CR on side higher CR on the other lol.

And yeah his videos crack me up!