LS2 vs LS6?
LS2 vs LS6? Probably a stupid question, but I'm new at this... What's the difference between the LS2 and the LS6. All I know so far is that the throttle body in the LS2 is 90mm... Thanks in advance for the comments.
Originally Posted by Born_Ready99
Probably a stupid question, but I'm new at this... What's the difference between the LS2 and the LS6. All I know so far is that the throttle body in the LS2 is 90mm... Thanks in advance for the comments.
The LS6 is soley used in the C5 Z06 and the CTS-V.
The LS6 is a 5.7 rated at 405hp after 01, while the LS2 is a 6.0L rated at 400. And I "think" they both put down similar numbers down to the wheels. And I have seen tthat the torque curve on the LS2 is pretty flat across the board.
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From: Philly
i recall dyno graphs and the LS2 is a higher rated engine for power output. the LS6 may have 5 more peak hp, but the LS2 towards the middle of the powerband makes an entire 30hp more than the LS6. while the peak hp rating is slightly less, the overall hp curve area for an LS2 motor is significantly higher. therefore, if you switched an LS6 car over to an LS2, you'd most likely pick up some time in your quarter mile (how much is you and my best guess).
i wish i had proof of these graphs. you'll just have to trust me on this one
i wish i had proof of these graphs. you'll just have to trust me on this one
if i am not mistaken a c5 z06 and a c6 run pretty similar times in the 1/4, and put down similar numbers on the dyno. the motors are different, but performance is similar. one thing to note is that the ls6 is pretty much top-of-the-line 3rd gen, while the ls2 is kinda the standard mid-range 4th gen motor like the ls1 was.
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From: Philly
Originally Posted by Michl1998
funny I've seen multiple stock ls6 zo6's pull ls2 vettes, but I guess dyno graphs win street races
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Originally Posted by Born_Ready99
Thanks for all of the replies and here's an additional stupid question: So would a LS2 intake bolt up to my LS1?
Yeah but an LS6 intake manifold will yield better results.
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From: Top of 4th Gear; Plano, TX
Originally Posted by TopFlite
Everytime I see that graph from gm, it makes me remember how underrated the LS6 is. LS2 is also throttle by wire instead of cable.
forget about it! Tech Resident
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From: Philly
Originally Posted by Ell Ess Won
As is the LS6 vette and any LS1 vette for that reason. That graph comparison looks awfully wrong, unless I'm reading it wrong, the LS6/LS2 dynod 400 stock? Obviously its crank hp?
yes, it's crank. there is no mention of WHP anywhere on the graph. in fact, it's called an "ENGINE POWER" graph.
Okay, what I'm not really getting is that an LS2 intake and throttle body have 90mm openings and the LS6's openings are not that big... So (I know this can't be right) would that be anything similar to the FAST 90/90 setup? Or is the FAST setup ported moreso, or am I missing something obvious??? Thanks in advance for your patience.
