how much hp will a ls3 block handle
12-07-2014, 03:05 PM
#1
how much hp will a ls3 block handle assuming its fully forged/studded and about 416cubic inch, i would think the block would flex or crack before any internals went anywhere or broke? i see people makin 800's on stock ls3's, so i assume a forged one will take all you can give it? how would this compare to a forged lq block
12-08-2014, 08:52 AM
#2
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With good internals, 800-1000whp is pretty doable. You'll have the standard oiling issues at some point and it will be hard to keep bearings in it. The aluminum blocks are only so strong. They all flex eventually.
Jack
Jack
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12-08-2014, 10:25 AM
#8
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The mains and webbing in the LS3 block is stronger. 36% stronger than the LS1 block according to GM.
Also, the water jackets were slightly redesigned to strengthen to upper portion of the cylinder liners.
Also, the water jackets were slightly redesigned to strengthen to upper portion of the cylinder liners.
12-08-2014, 11:47 AM
#10
The iron 6.0s are stupid thin between cylinders . we are talking ~.100 wall thickness. Just the steel liner alone is thicker than this on a ls3
I know this
A 4mm rod can fit between there easy.... So figure wall thickness with a 4.03 bore /4.4 bore space even perfect with no coreshift
I know this
A 4mm rod can fit between there easy.... So figure wall thickness with a 4.03 bore /4.4 bore space even perfect with no coreshift
12-08-2014, 09:48 PM
#12
wow THANKS for all the repsonses i love having alot of opinions, and yea i wondering if it the ls3 was a better choice over the iron, but it seems like they both hold about all a 4 bolts head will hold down anyways..or 1000-1100 wheel? and i like the added wall thickness on the ls3's for sure!! so a fullly built one as badass you can build it, basically will handle 1k wheel all day? assuming everything else is done right
12-09-2014, 01:20 PM
#16
yea that engine i sold you i was going to push hard!! and sold bcus was going lsx until i came across the ls3, just havent really seen many people on tech talk about boosted ls3's. lol but im tryin to be!!! i know theres probly rich 18yo's that can afford anything to be faster than me..but im probly the fastest f body thats my age??
12-09-2014, 01:24 PM
#17
its also awesome hearing the info on how good the ls3 actually is compared to a 6.0, i know its supposed to be the strongest gm aluminum block, so if its as good as a lq block and its alot lighter.. i guess its the best thing next to an lsx or crazy rhs/c5r blocks
12-24-2014, 10:34 AM
#20
and yea i mean with a t6 turbo maybe like 91mm and 22-24psi onna stroked ls3, that should make some damn power!! not what im running but awesome knowing the block can handle it
anymore setups out there? or opinions