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LS6 or LS2 which shortblock better to build off of for nitrous build?

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Old 12-24-2011, 08:27 PM
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Originally Posted by sabastian458
I was curious about how much the used 30k ls6 was being sold for. I have a 16k mile ls6 and was considering on selling it.
you could prolly throw it up for 3k and see if you get any bites. always start high and work your way down if its no hurry. i know alot of guys would like to put an LS6 in some oldies or ricers. but LS6 is just a glorified LS1.
Old 12-24-2011, 09:30 PM
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LS2 will make more usable Torque.
LS2 is a much stronger Block that be overbored up to .030
LS6 Can only be overbored .005
Put a 4.00" stroke crankshaft in the LS2 & you will have 404 cu. in.
Thats 30 more cubes than an LS3. Theres no substitute for cubic inches.
Old 12-24-2011, 10:28 PM
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i wouldnt know man, id say throw it online for 3 grand and see if you get any bites. some guys like an LS6 for their oldies or some ricers.
Old 12-24-2011, 11:21 PM
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Originally Posted by sabastian458
I was curious about how much the used 30k ls6 was being sold for. I have a 16k mile ls6 and was considering on selling it.
The longblock was for sale for $1,900 but I offered him $1,800 and he accepted it, but looks like the LS2 is the way to go so I am leaning that way.

Originally Posted by NOS LS1
Put a 4.00" stroke crankshaft in the LS2 & you will have 404 cu. in.
Again showing my ignorance, can something like this be done with installing the stroker crank with the factory rods and pistons or would the power gained not be worth the cost?
Old 12-25-2011, 10:43 AM
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Originally Posted by VIPRETR2
That's just bad information there. The LS2 may have either 24x or 58x reluctor depending on year. If it happens to be a 58x reluctor engine and you don't want to take the motor apart you can buy Lingenfelters signal converter box.

https://ls1tech.com/forums/15715001-post6.html

http://www.lingenfelter.com/mm5/merc...w=&range_high=

Good luck, oh, and I vote LS2.
Bad information because I didn't recommend a fancy conversion box?

2005 LS2's were bastard years, and a few had the 24x reluctor. I've done 15-20 LS2 swaps over the years and have yet to come in contact with one yet, so I'd like to believe they're pretty rare.

As for changing the reluctor, it's not a big deal. If the engine is out on a stand, I just pull the crank and change it since I typically recommend a refresh when installing a used engine anyway.


OP, that's not a G5X3 cam. IIRC, they have a 234 intake lobe (EDIT: Just saw that Pat G posted that info already). 2-4 degree splits will "work" for nitrous, but it's not optimum. If you look at a nitrous specific engine, there's typically a huge split between intake/exhaust. I've noticed MUCH higher TQ increases on nitrous using a 6-8 degree split vs. a smaller split.
Old 01-17-2012, 12:23 AM
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Ls2 all day!



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