Few things regarding LS2
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,966
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11
Few things regarding LS2
Looks like we can use the intake and throttlebody.
LS2 heads are the same as those on an '01 (375hp) LS6. Note that they use the shorter, solid-stem valves rather than '02-'04 (405hp) LS6's exotic, longer, hollow-stem intake valve and sodium-potassium("NaK")-filled, hollow-stem exhaust valve. Because the LS2 camshaft is less aggressive, lighter valves are unnecessary to keep the valve train stable all the way to LS2's 6600-rpm rev limiter. The rest of the LS2 valve gear is also the same as '01 LS6.
The cam in the LS2 is similar to the '01 LS6 cam. It uses the same profile but the part number is new because the cam position sensor target was moved from the cam to the camshaft sprocket. Valve lift is .525-in. and duration at .050-in lift is 204o int/211o exh.
LS2 heads are the same as those on an '01 (375hp) LS6. Note that they use the shorter, solid-stem valves rather than '02-'04 (405hp) LS6's exotic, longer, hollow-stem intake valve and sodium-potassium("NaK")-filled, hollow-stem exhaust valve. Because the LS2 camshaft is less aggressive, lighter valves are unnecessary to keep the valve train stable all the way to LS2's 6600-rpm rev limiter. The rest of the LS2 valve gear is also the same as '01 LS6.
The cam in the LS2 is similar to the '01 LS6 cam. It uses the same profile but the part number is new because the cam position sensor target was moved from the cam to the camshaft sprocket. Valve lift is .525-in. and duration at .050-in lift is 204o int/211o exh.
Last edited by ragtopws6; Aug 2, 2004 at 04:24 PM.
Drifting
Joined: May 2002
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From: San Francisco CA
One of the keys to whether the intake manifold will fit is if the deck height of the LS2 block is the same the LS1. Sometimes manufacturers will change the deck height when changing the stroke.
Resident moron
Joined: Jun 2003
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From: Assachusetts
Originally Posted by SFVetteman
One of the keys to whether the intake manifold will fit is if the deck height of the LS2 block is the same the LS1. Sometimes manufacturers will change the deck height when changing the stroke.
It's just a 4" bore block, just like the 6.0 iron blocks in the trucks.
Dope
Melting Slicks
Joined: Jun 2002
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From: Dublin CA
Is there a thread that discusses the difference between LS6 and LS2 in-depth? How much more desireable is the LS2 over the LS6?
I am planning for a change from my C5 A4 convertible to an C5 M6 coupe, and plan to transplant the supercharged forged LS6 engine when I do this. I'm curious to know if a C6 coupe would be a good candidate for the LS6.
I am planning for a change from my C5 A4 convertible to an C5 M6 coupe, and plan to transplant the supercharged forged LS6 engine when I do this. I'm curious to know if a C6 coupe would be a good candidate for the LS6.
Melting Slicks
Joined: Oct 2002
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The ls2 is using the 85mm MAF, it looks from the pic they put the screen back on--they do have a new PCM that includes TPS so it want be a seperate throttle position sensor--the 4" bore is a perfect candidate for a 4" stroke for a nice square motor 402 cubic inch--the c6 also has an improved m6 tranny with improved syncro's that shorten the throw by an inch and shift smoother or so they claim--I am very interested in the pcv system that is suppose to be far superior which we all need--
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Le Mans Master
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From: Slave to the evil empire
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St. Jude Donor '04
Originally Posted by NEPTUNEBILL
I am very interested in the pcv system that is suppose to be far superior which we all need--
I switched over to the LS6 system which was pretty much a waste of time
Safety Car
Joined: Nov 2003
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From: San Diego, CA "leaf" "tee" "e"
Originally Posted by NEPTUNEBILL
the c6 also has an improved m6 tranny with improved syncro's that shorten the throw by an inch and shift smoother or so they claim--I am very interested in the pcv system that is suppose to be far superior which we all need--
I'm interesting in the PCV system as well. I was going to go with the latest LS6 system, but still haven't heard about any positive results yet. In the meantime I'm using a catch can. The extra power from an LS2 intake won't be soo bad either.
Eugene
