What's the major difference between small block chevy and an LSX?
#42
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hmmm pee paww, it was a joke, theres no doubt in my mind an old "big block based aftermarket blocked engine" with twin turbos would make stupid power but uhhh so does a jet engine, now take some Geritol, kick back in your recliner and chill out, andddd this, contradictory statement ahead "two door sedan" might show you something cool , like electronic fuel metering devices.
Last edited by 1_fast_gto; 01-22-2011 at 01:18 AM.
#44
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Yea, the big block chevys are where it is at, but the GEN IV LS is where it should be, GM dropped the ball going to a 4 bolt per slug cylinder head.
BTW, check out the pump gas drags, a few 7 second pump gas chevys out there, how many supras do that on 93 shell gas?
#48
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The biggest difference between the two is that no matter how much money you throw at an LSx engine if you dont know WTF your doing/reading it wont hold up. The SBC is idiot proof and can be fixed on the shoulder of the road for 20 dollars.
#50
To be honest...
The newer LSX hardcore stuff is just copy's of FORD's SBF stuff. A DART Iron Eagle SBF block with 4 bolts per cylinder is much better than any of the LSX stuff.
The blocks and heads just arnt there to make big HP 2600+ with out having major issues. I.E your **** is constantly apart during a season.
The newer LSX hardcore stuff is just copy's of FORD's SBF stuff. A DART Iron Eagle SBF block with 4 bolts per cylinder is much better than any of the LSX stuff.
The blocks and heads just arnt there to make big HP 2600+ with out having major issues. I.E your **** is constantly apart during a season.
#51
This is a good question though.I think it has to do alot with the begin of fuel injection people started to experiment with the new blocks, lt1, mainly. I guess they got tired of slapping edelbrocks intakes and carbs on the old school. The ls engines have also exploded the aftermarket industry, (blowers,turbos,nitrous) nowadays people like using the technology..
#52
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#54
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The traditional SBF/SBC stuff is way ahead of the LSX stuff in terms of strength especially when it comes to racing over a competitive season. SBF/LSX both share a 4-head-bolt per cylinder design but the SBF engines will hold 3k hp reliably while the LSX is an iffy tune-up away from a huge melt-down and a trip back to the engine shop.
The cylinder heads available for the SBC/SBF are also way beyond what is available for the LSX but it's been a while since I've looked at any LSX stuff.
In summary: SBF > SBC > LSX
#55
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A lot of LSX/SBC people get butt-hurt when they find out that Ford got it right from the start. That EI, IE, EI, IE lay-out sucked major donkey dick on the original SBC design and when they decided they needed a better design to go fast what did they do? Well they copied the SBF symmetrical port layout.
The traditional SBF/SBC stuff is way ahead of the LSX stuff in terms of strength especially when it comes to racing over a competitive season. SBF/LSX both share a 4-head-bolt per cylinder design but the SBF engines will hold 3k hp reliably while the LSX is an iffy tune-up away from a huge melt-down and a trip back to the engine shop.
A junk yard build off leaves the LS ahead, aftermarket? As stated above the LSx can get more cubes, more power and have heads available that flow 400 CFM, so i cannot say i can chalk up a W for the SBC or SBF against the LS stuff.
BTW, there is a member here running 9s all motor on a stock 6.0 truck motor with cam only in a fox mustang, most people here wish they can go 10s all motor. There is of course a weight advantage, but impressive none the less.
#58
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The cylinder heads available for the SBC/SBF are also way beyond what is available for the LSX but it's been a while since I've looked at any LSX stuff.