LS2 vs LS3
Thread Starter
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Joined: Mar 2012
Posts: 399
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From: Usa
LS2 vs LS3 Hi!
I recently got into a 2004 C5 Corvette. I'm looking to the (distant) future on a 400+ci build. I've noticed quite a few C5 builds using an LS2 base for the build, typically 402ci. Alternatively, a common large cube package using the LS3 is 441ci.
Considering the are both Gen Iv blocks, is there a reason to prefer the LS2 over the LS3? I would think in either case, you have the same set of problems to solve for replacing an LS1/LS6.
Thanks for reading!
I recently got into a 2004 C5 Corvette. I'm looking to the (distant) future on a 400+ci build. I've noticed quite a few C5 builds using an LS2 base for the build, typically 402ci. Alternatively, a common large cube package using the LS3 is 441ci.
Considering the are both Gen Iv blocks, is there a reason to prefer the LS2 over the LS3? I would think in either case, you have the same set of problems to solve for replacing an LS1/LS6.
Thanks for reading!
LS2 vs LS3
I've read the LS2 block is better if one plans to do a sleeved set up. It's been said LS2 blocks can sometimes go .030 over for 4.030 bore. I don't know how common those block are to find.
LS2 blocks seem to be less expensive.
New LS2 block under $1,300
New LS3 block over $1,900
The LS3 has the bigger stock bore.
LS2 402/408 stroker vs LS3 416 stroker - the difference ~8 to 14 cubes. Say 10 to 15 hp for NA applications. Is that worth $600? I would say depends on the person and their budget.
I've read the LS2 block is better if one plans to do a sleeved set up. It's been said LS2 blocks can sometimes go .030 over for 4.030 bore. I don't know how common those block are to find.
LS2 blocks seem to be less expensive.
New LS2 block under $1,300
New LS3 block over $1,900
The LS3 has the bigger stock bore.
LS2 402/408 stroker vs LS3 416 stroker - the difference ~8 to 14 cubes. Say 10 to 15 hp for NA applications. Is that worth $600? I would say depends on the person and their budget.
Thread Starter
Banned
Joined: Mar 2012
Posts: 399
Likes: 1
From: Usa
Looking around at some of these builds, I might get to my performance goals with a little smaller ci. Looking to hit 10.9x in 3,500 DA without going over .600 lift. I've seen a couple of 402 LS2 builds that are right there, but too much lift & converter than I want. Figured I'd make it up with cubes.
I have a strong preference to go 454. Looking at the RHS block, too.
I have a strong preference to go 454. Looking at the RHS block, too.
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