LS motor in a C4
12-20-2007, 05:54 PM
#41
What i'm saying is that Gen 1 parts (not LT1) are cheap and plentiful. I believe that the same power can be made for cheaper on a Gen 1 SBC. However, the LSx engines are more efficient and thus that power will be easier on the street and gas mileage.
Its the high cost of buying a LSx engine and then having to upgrade it, ouch.
Its the high cost of buying a LSx engine and then having to upgrade it, ouch.
Are you including the gas mask for the big cubic inch Gen 1's for the price?
Last edited by 88BlackZ-51; 12-20-2007 at 06:25 PM.
12-20-2007, 06:10 PM
#42
Le Mans Master
I'm curious too, remember demonic, the LSx doesn't start at the 235 that your l98 starts at...
12-20-2007, 10:09 PM
#44
Melting Slicks
I can tell you exactly what you need to make it up to a ZF6: Custom smaller flywheel, bellhousing, and starter. Not sure about the actual clutch itself. Input shaft is too short. There are too many issues to deal with.
Don't hold your breathe; I don't think it's going to happen.
What i'm saying is that Gen 1 parts (not LT1) are cheap and plentiful. I believe that the same power can be made for cheaper on a Gen 1 SBC. However, the LSx engines are more efficient and thus that power will be easier on the street and gas mileage.
Its the high cost of buying a LSx engine and then having to upgrade it, ouch.
Its the high cost of buying a LSx engine and then having to upgrade it, ouch.
All the big power SBC's are 18 degree (or lower...) heads. The great thing about LSx parts is they are already 15.5 degree OR LOWER. Let that sink it: $179 15 degree heads. Find me any low angle SBC head that is that cheap.
LSx makes the mad power from the low valve angle. Sure, you can put low angle heads on an SBC, but LSx has these parts from the factory. Yes, the upfront cost of an LSx swap is higher, but you CAN NOT build as much power for cheap with an SBC.
Read this: http://www.carcraft.com/techarticles...ads/index.html
12-20-2007, 10:28 PM
#45
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Demonic, I'm still going to disagree with you when it comes to strictly power per dollar figures. If you start calculating conversion costs into the equation, in certain cases you will be better off money wise staying with a SBC. However, Pat has proved that you can do the LS1 swap for very cheap with his C3. I believe he is right at the $2000 mark for just the LS1 conversion and he is EFI not carbed. You really just have to examine each build on an individual basis in order to determine what is the best way to obtain the goal.
12-20-2007, 11:51 PM
#46
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St. Jude Donor '05
23 degree tech is defintely closing the gap a bit but with the LS you can make more tons of power with good reliability, drveability and be more efficient. There are tons of these motors floating around and awesome aftermarket support. Dont pass up the opp. to do it if you can.
