[speed_demon_freak]

What are the differences between the two?

Heads.... Cam....Intake?


Will parts interchange?

 

[DevilYellow]

Well they come in different cars so they do have a different MAF and manifolds than a normal F-body... with the GTO's we will have to see.

The main difference is the heads. Flow much more. The intake and block is normally used with LS1's now anyways. The cam in the 02-04 Z06's should be comparable to a GTO cam. The LS6 also runs with a tad higher compression ratio.

They all interchange.

 

[CMNTMXR57]

LS6 block has larger bay to bay breathing ports too.

 

[crazywop112]

LS6 has a 6,500 rpm redline. LS1 has a 6,000 rpm redline.

 

[CMNTMXR57]

LS1 is 6,250

 

[crazywop112]

That's the second time I have been corrected by GOD this week. Thanks for the info.

 

[CMNTMXR57]

No problem. I've bounced off of mine plenty of times to know.

 

['91 Formula]

LS6 block has larger bay to bay breathing ports too.

As far as the F-body goes I know they stopped using the smaller port LS1 block eairly 2002, or around that time. The ones built after then have the larger bay ports, LS6 block with the LS1 heads and LS6 intake.

LS6 intake replaced the LS1 in 2001 and 2002 in the F-bodies. I don't know about the Vettes.

 

[CMNTMXR57]

That's a well known fact. The casting number for the LS6 block if you want is 12561168. You can also tell by the lister/finish on teh block. The LS6 has a less shiny/duller casting than the LS1. There are two plants that produced LS1/LS6 blocks. Montupet Canada and Nemak Mexico. When it came to producing the LS6 block, GM went with the Nemak facility.

What makes the difference in strength between the two blocks is that Montupet (LS1) uses a gravity feed process that uses a combination of metallic dies and sand cores. The Nemak factory uses a low-pressure precision fanning process.

The LS6 intake replaced all LS1 intakes by that time and did not incorporate EGR plumbing (the Vette version has never had an EGR for those that don't know) as GM utilized the ramp speeds and lobe separation on the camshaft to make up for it. To convert a NON-LS6 intaked F-Body to LS6 intake also requires a coolant bypass tube for up front and two block off lugs for the back. This is needed because the bottom of the LS1 intake has room for a coolant line to run underneath it to the back. The LS6 to make room for the additional runner size and what not eliminated this space. So you block off the back with those two lugs, and get the re-routing tube for up front. I also plumbed my factory EGR back into the LS6 intake.

 

[Larmo]

That's a well known fact. The casting number for the LS6 block if you want is 12561168. You can also tell by the lister/finish on teh block. The LS6 has a less shiny/duller casting than the LS1. There are two plants that produced LS1/LS6 blocks. Montupet Canada and Nemak Mexico. When it came to producing the LS6 block, GM went with the Nemak facility.

What makes the difference in strength between the two blocks is that Montupet (LS1) uses a gravity feed process that uses a combination of metallic dies and sand cores. The Nemak factory uses a low-pressure precision fanning process.

The LS6 intake replaced all LS1 intakes by that time and did not incorporate EGR plumbing (the Vette version has never had an EGR for those that don't know) as GM utilized the ramp speeds and lobe separation on the camshaft to make up for it. To convert a NON-LS6 intaked F-Body to LS6 intake also requires a coolant bypass tube for up front and two block off lugs for the back. This is needed because the bottom of the LS1 intake has room for a coolant line to run underneath it to the back. The LS6 to make room for the additional runner size and what not eliminated this space. So you block off the back with those two lugs, and get the re-routing tube for up front. I also plumbed my factory EGR back into the LS6 intake.

I'm speechless.







.

 

[davbo]

Larmo, don't make his head any bigger......he already has a God complex.

 

[Larmo]

Good tip.... but I do know when the respect those with superior intelligence to mine. (when it comes the LS1 and the GTO, anyway)

 

[CMNTMXR57]

Hey, it's hard being me.

Just kidding. You'll find that I'm not really that smart, I just play someone who is on this internet thing.

 

[Tails]

Shhhh... don't say it too loud but CMT is dyslexic. It should read DOG.


:drink: :drink:

 

[CMNTMXR57]

Someone here already has "DOG" as their's and I'd hate to steal it.

 

[tiggerfan]

Someone here already has "DOG" as their's and I'd hate to steal it.

We could switch

 

[RedDevil]

The LS6 intake replaced all LS1 intakes by that time and did not incorporate EGR plumbing (the Vette version has never had an EGR for those that don't know) as GM utilized the ramp speeds and lobe separation on the camshaft to make up for it.

Could have sworn that 99 vette did have egr?

 

[CMNTMXR57]

No LS1 Vette has had an EGR. Only F-Bodies up till '99 I think. I can never remember if it's '99 or '00.

 

[RedDevil]

Its 00' for f-bodies


<----Has 00' that had EGR

 

[Hunter98TA]

The LS6 kicks butt in an F-body!!!! I had a 2002 LS6 put in when the LS1 rods decided to come out and get a suntan. Times and dyno in sig.
Matt