lsx vs sb you decide

[anthony 69]

if you had a choice which would you pic. an lsx motor great motors but every body is doing it these days. or 400 sb with a fuel injected magncharger a little differant. hp and about the same. ls with better idle, 400 chopper muscle car idle. i wish i knew how to take a poll. thanks anthony

[Musclerodz]

LSX all the way

[Steve1968LS2]

Originally Posted by anthony 69

if you had a choice which would you pic. an lsx motor great motors but every body is doing it these days. or 400 sb with a fuel injected magncharger a little differant. hp and about the same. ls with better idle, 400 chopper muscle car idle. i wish i knew how to take a poll. thanks anthony

The blown SBC will cost more.. make less power and get worse mileage.. and weigh more.

Other than that though... lol

Just kidding.. but seriously, the factory EFI stuff is a snap compared to the aftermarket and replacement parts are easy to find, even i the middle of nowhere.

[INJECTED69]

Lsx !

[scherp69]

Everyone's doing a LSX conversion because of the better driveability, fuel economy, etc. The heads have better flow numbers and easy to upgrade hp numbers with tuning. Go with LSX.

[WSSix]

Since you're starting from scratch and appear to have enough of a budget to afford an LSx engine, go with the LSx engine. It's that much better to deal with overall than a built SBC. To me the simple things like how easy it is to replace parts and to not deal with temperamental gaskets like those found on a SBC are worth it.

[XcYZ]

LS all the way. Once you see the light, there's no going back.

[awr68]

Anthony, I added a poll for ya...and voted LSx!!

[anthony 69]

anthony thank for the poll....... no love for the sb!!!!

[sacarguy]

Originally Posted by scherp69

Everyone's doing a LSX conversion because of the better driveability, fuel economy, etc. The heads have better flow numbers and easy to upgrade hp numbers with tuning. Go with LSX.

starting from scratch you can make as much power as much driveability and as much fuel economy from a SBC but unless you are building a serious engine its just easier and cheaper to do the el es jaun ..

the statement you made is ONLY true when comparing a stock style vs stock style setup

yes a carbed sbc vs a efi ls1 is going to lose out

but when building with aftermarket heads ... aftermarket cams aftermarket efi etc you can do anything with a sbc you can with a ls1

the ls1 has the advantage on milder combos where you are not going to change out the heads going to leave the stock efi etc

But if you are looking to build something wilder 400 + cubes aftermarket efi turbo or supercharged etc 550 + horsepower then he sbc can hold its own all day long with the aftermarket parts that are available out there.

the only reason the el es jaun in my opinion wins out is for a driver with mild performance upgrades you can buy 5.3 drop outs complete with auto transmission and the efi for around 900-1400 bucks all day long if you look and by time you add everything you need to install it etc your sitting around 3 k for a late model efi drive train ..