lsx vs sb you decide
 

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

LSX all the way

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.

sparky that is perfect but i dont have the funds to do both anthony

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.

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

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

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

LSX seems to be the way to go now that it has such an aftermarket support. An LSX of the same power as a SBC would be much more streetable and reliable. If I didn't have so much $ wrapped up in my SBC I would be doing a LS motor myself!

Its simply a matter of goals. If your going to stay below 550 hp and your on a serious budget. Go Gen 1 parts are cheap an their is no hidden conversion cost's.
If you have 600 hp goals then the LS is the only way to go and you should realize that these goals will cost you.

for me the cost is about 12 grand. 6K for a GTO dropout (this includes trans)
4K for a supercharger and 2 K for mounts headers and Misc stuff.


Now can you build a 600 hp Gen 1 for that sure.. but not a stable one. Once you get to these numbers you need to go with a Dart block which are 1400.-2k easy. Add in a set of 3K Afr's and a 1K cam lifter rocker combo, 3 k on the efi 2 K on crank rods pistons. Quick math puts you at the same numbers with no trans pluse $$ for a charger and cooler (no cooler for blow through BTW).... it adds up fast... and at the end of the day you wont have 18 degree heads or an alum block.....