LS1 vs LS6 ?
Thread Starter
Burning Brakes
Joined: Apr 2005
Posts: 1,123
Likes: 14
From: Booker Texas
LS1 vs LS6 ?
I have searched but did not get the answer I wanted.I have a 2002Coupe with the LS1 350 HP.Ok what makes the 2002 ZO6 LS6 engine have 405HP?They are both 5.7L.
Thanks
Thanks
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
I believe it's the heads, cam, lack of pre-cats, and raise in RPM limit that actually give it the extra 55hp. The heads flow better and raise the compression to 10.9:1. I believe all 2002+ LS1 engines share the same intake,thin-walled exhaust manifold, and block with the LS6 engine.
Last edited by reactor2; Jun 15, 2007 at 07:43 PM.
Pro
Joined: Jan 2007
Posts: 614
Likes: 24
From: Manteca, CA
I believe it's the heads, cam, lack of pre-cats, and raise in RPM limit that actually give it the extra 55hp. The heads flow better and raise the compression to 10.9:1. I believe all 2002+ LS1 engines share the same intake,thin-walled exhaust manifold, and block with the LS6 engine.
Corvette LS1 vs LS6:
-different head castings (LS6 flow slightly better stock) 241 on LS1, 243 on LS6, LS6 heads have sodium filled valves for lighter valvetrain weight and a smaller combustion chamber for higher compression.
-All 2001 and newer Corvettes and F-body LS1s have the LS6 intake.
-different cam specs (02-03 LS6 cam is much better than 01 or regular C5)
-different PCV system
-slightly different block internals (crankcase port windows larger on LS6)
-same crank and rods, I believe pistons are a bit different
Cam Specs
Corvette LS1
198/208 .500/.500 115.5 LSA
Corvette LS6 02
204/218 .551/.541 117.5 LSA
Pro
Joined: Dec 2005
Posts: 682
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From: West Chester Pennsylvania
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