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FUH Q · 11-08-2008, 05:44 PM

I searched alot and couldnt find any good comparisons. My question is simply which of the two (427 ls3/l92 or 427 ls7) would be better for performance/reliability/fuel economy? I know alot think big cubes and reliabilty/fuel economy don't go together, but if im paying top dollar for a build, i want it done right. I think the only differences between the two blocks are that the ls7 uses a bigger bore and shorter stroke while a 427 ls3/l92 would use a longer stroke and smaller bore (than the ls7). All opinions are welcome.

11-08-2008, 05:44 PM	#1
FUH Q Staging Lane Trader Rating: 0 Join Date: Oct 2008 Location: Wylie, TX Posts: 76	427 ls3/l92 vs. LS7 I searched alot and couldnt find any good comparisons. My question is simply which of the two (427 ls3/l92 or 427 ls7) would be better for performance/reliability/fuel economy? I know alot think big cubes and reliabilty/fuel economy don't go together, but if im paying top dollar for a build, i want it done right. I think the only differences between the two blocks are that the ls7 uses a bigger bore and shorter stroke while a 427 ls3/l92 would use a longer stroke and smaller bore (than the ls7). All opinions are welcome.