justav6iswear

iTrader: (6)

alright, I have a LS1 out of a 98 SS, and by buddy has a 6.0 out of a 03 tahoe and we were wondering what the diferances were in the top end, and what heads would be better on the 6.0. I just picked up aftermarket heads and a camshaft for the f-body 5.7, so would my LS1 heads flow better than his stock 6.0's? also, what about the camshaft would the LS1 camshaft run his 6.0 a little better? we are both new to the Gen III scene, and with all the parts swapping I see, I was just wondering what some proven setups were? Thanks for the help!

Gauge

iTrader: (3)

The LS1 cam is going to be inferior to the LS2 (6.0) cam. I believe that the LS2 heads flow better. And, just FYI, the LS2 is a Gen IV motor while the LS1 is a Gen III.

Taspeed

iTrader: (1)

I don't believe he is talking about ls2. the 03 tahoe was using the iron block still.

justav6iswear

iTrader: (6)

yea, Im not comparing an LS1 to an LS2, im comparing an LS1 to the 6.0 cast iron truck block, we want to get the truck block to put out more power and I want to know if the LS1 cam and heads would be a better package, assuming they bolt up.

spy2520

iTrader: (3)

yeah the truck motor was either a lq4 or lq9 i believe, dont know **** about what parts would swap for a benefit though...

Wnts2Go10O

iTrader: (12)

the 6.0 has 317 heads (72cc ls6 heads). you either have 9.5(lq4) or 10(lq9) to 1 compression. the difference is the pistons.

Mike2000Z28

I'm also interested into what parts will work in the swap. Don't want to jack your thread but after looking at some searchs, you have to drill and tap our alternator in the truck block but everything else should work right. IF I decide to buy a 6.0 truck block instead of rebuilding my 346 LS1 I can use my heads and cam or will it be better to mill the 6.0 heads down to raise compression? Will my computer run the truck block alright. I'll also need injectors unless I get the 6.0 longblock.

12secSS

iTrader: (30)

The Tahoe did not have the LQ9 option, that was reserved for the Escallade and SS Silverados only. So the cam in your camaro is slightly bigger, not worth swapping into his engine and going through all that effort for results he will not see/feel. His heads (317) flow better then the early (853) LS1 heads, both are aluminum. You can verify the engine by looking in the glove box of his Tahoe and look for either LQ4 or LQ9 (doubt he will have this) just in case. Everything, including the intake, can swap into his Tahoe. Although the intake will require quite a bit of fabrication to get it mate up to the intake tube without hitting the water pump.

Jed Z06

iTrader: (1)

I am all ears also...
On a LQ4 block...would ls1, ls2, ls6, ls7 heads bolt up?

jermzz

iTrader: (18)

any gen 3 parts will bolt up to a gen 3 motor. Ls2 parts will bolt up to gen 3 parts aswell with some modification of electronics (cam sensor). Ls7 heads will bolt up to Gen 3 motors if you use the ls7 Intake, no way around this.

I'm pretty sure thats it? someone correct me if i missed anything.

Jorge Olmos

LQ9 head (LS1 style) 6.0L is simalar to LS6 head
LQ9= 210cc intake runners w/72cc cumbustion chamber
LS1= 205cc intake runners w/67cc cumbustion chamber
LS6= 210cc intake runners w/65cc cumbustion chamber

So if you plan to go forced induction, the LQ9 heads are good for you
LQ9 heads do out flow a stock LS1, Patriot Performance are selling fully Ported LQ9 and LS6 heads for about $1100.
And I think that a F-body cam would be better then a low reving truck cam
good luck with you build!

Jorge Olmos

Yes what he said

Nate_Taufer

iTrader: (1)

LS7 heads wont work on a 4.0" bore. They need a minimum of around 4.065 or so.

Nate

BlackZ28629

iTrader: (8)

LQ9=cheaper stroker motor!!!! all LS1 components work with it and the only diff. is about 100 lbs. or so....OOOOO so what 100 lbs. is nothing if you have power to pull it!! A friend of mine has an LQ9 block in his GMC truck with an LS1 cam and runs mid 12's. If his motor was in an F-Body car, it would run 11's.(F-bodies are about 1000lbs. less weight)

frankmarroquin

iTrader: (31)

Doin this swap soon... I am all ears.

JBIRD02

iTrader: (4)

yep, this is true.

Assuming the top end will be the same, swapping to a 6.0 block wont be worth your time. My friend swapped his heads, aftermarket cam, etc. onto a 6.0 block, and we made identical power.
Now, if your going to a 6.0 in order to go bigger cubes(400+ c.i.), then yeah, go for it.
just my $.02