LS2 cam specs
Melting Slicks
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
Originally Posted by vertC6
204/211 .525 116
Burning Brakes
Joined: Feb 2005
Posts: 1,113
Likes: 8
From: Whitehall PA
Most people assume the LS2 cam gives the same .525 lift for intake and exhaust valves as the 2001 LS6 cam, but according to "Engine Specifications" in the 2006 service manual, lobe lift is .306 & .305 in. respectively for intake and exhaust. Multiply that by the 1.7 rocker arm ratio and valve lift is .5202 in. for intake and .5185 in. for exhaust. I had assumed duration was 204 intake and 211 exhaust as is the '01 LS6, but was not able to find duration specs in the manual and therefor cannot verify those figures.
Is our LS2 cam the same as the 2001 LS6 cam? I suspect it is not. It might be a somewhat milder cam.
Is our LS2 cam the same as the 2001 LS6 cam? I suspect it is not. It might be a somewhat milder cam.
Last edited by Marina Blue; Nov 1, 2006 at 07:38 PM.
Instructor
Joined: Jun 2006
Posts: 165
Likes: 45
From: Connecticut
Originally Posted by Marina Blue
Most people assume the LS2 cam gives the same .525 lift for intake and exhaust valves as the 2001 LS6 cam, but according to "Engine Specifications" in the 2006 service manual, lobe lift is .331 & .328 in. respectively for intake and exhaust. Multiply that by the 1.7 rocker arm ratio and valve lift is .5202 in. for intake and .5185 in. for exhaust. I had assumed duration was 204 intake and 211 exhaust as is the '01 LS6, but was not able to find duration specs in the manual and therefor cannot verify those figures.
Is our LS2 cam the same as the 2001 LS6 cam? I suspect it is not. It might be a somewhat milder cam.
Is our LS2 cam the same as the 2001 LS6 cam? I suspect it is not. It might be a somewhat milder cam.
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Racer
Joined: Aug 2005
Posts: 449
Likes: 68
Originally Posted by rtg
I must be missing something here but when I multiply by 1.7 I get .5627" and .5576" lift respectively. Seems to be pretty far away from .525" lift.
Marina Blue, can you double check that .
Burning Brakes
Joined: Feb 2005
Posts: 1,113
Likes: 8
From: Whitehall PA
Originally Posted by baf2000_1
Must be a typo? From the 2005 service manual intake is 0.306 and exhaust is 0.305. Multiply by rocker ratio...
Marina Blue, can you double check that .
Marina Blue, can you double check that .
