3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

sbc

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Old Dec 5, 2006 | 11:37 AM
  #1  
ILOVEGINA's Avatar
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sbc

just to make sure, 400's and down are small block chevy's???? cause some dumb *** on my other forums is thinkin he knows everything, so if you got it, cool, and post up some proof to, i will send you the thread, look on page 7.

http://www.srtforums.com/forums/show...52#post4170052

thanks
Old Dec 5, 2006 | 01:04 PM
  #2  
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are you foxracing12002?

the 3rd gen and 4th gen small block chevy (not the 3rd and 4th gen f-body) are still considered small block chevy
it is true that the only thing the have in common with the first gen and second gen is the bore spacing
it is not a marketing gimic to sell more trucks, its the evolution of the engine
chevy isnt like ford, creating new engine families every chance it gets
we keep it simple, small and big

all small block chevys have the same external dimensions and were offered from the factory all the way up to 400 cubic inches for the first gen, and up to 427 cubic inches for the 4th gen (yes the LS7 is a small block chevy)
the 3rd generation small block chevy is not exactly 350 cubic inches it is 346 cubic inches, but when you convert cubic inches to liters it comes out to 5.7 liters

a 350 is 4.00 bore 3.48 stroke


big block chevy's can range from 396 up to 572, all have the same external dimensions


if you ask specific questions i will be glad to try and answer them
you can also pm me if you want
Old Dec 5, 2006 | 01:13 PM
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Unfortunately it's not that simple. The 400 came in both BB and SB size. The 396 is a BB.
The LS series engine are definitely SMALL BLOCKS, if they weren't then they would not be part of the series, i.e. Gen. I, Gen. II, Gen. III. Look at any GM parts or adds, the LS is listed under SBC.
Old Dec 5, 2006 | 11:40 PM
  #4  
ILOVEGINA's Avatar
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Originally Posted by respectirocz
are you foxracing12002?

the 3rd gen and 4th gen small block chevy (not the 3rd and 4th gen f-body) are still considered small block chevy
it is true that the only thing the have in common with the first gen and second gen is the bore spacing
it is not a marketing gimic to sell more trucks, its the evolution of the engine
chevy isnt like ford, creating new engine families every chance it gets
we keep it simple, small and big

all small block chevys have the same external dimensions and were offered from the factory all the way up to 400 cubic inches for the first gen, and up to 427 cubic inches for the 4th gen (yes the LS7 is a small block chevy)
the 3rd generation small block chevy is not exactly 350 cubic inches it is 346 cubic inches, but when you convert cubic inches to liters it comes out to 5.7 liters

a 350 is 4.00 bore 3.48 stroke


big block chevy's can range from 396 up to 572, all have the same external dimensions


if you ask specific questions i will be glad to try and answer them
you can also pm me if you want
yeah i am foxracing12002, the way the whole thing started is some guy was sayin the Ws6 motor wouldn't fit in his ss, and i told him it was the same thing, same size ect, then that guy says that they are not the same demensions and i wanted to make sure that they were before i tell him he is a dumb ***. he said they are not small blocks, they are diff sizes, and they are not interchangable. just wanted to reverify they are. thanks man
Old Dec 6, 2006 | 09:00 AM
  #5  
Z28SORR's Avatar
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Originally Posted by ILOVEGINA
yeah i am foxracing12002, the way the whole thing started is some guy was sayin the Ws6 motor wouldn't fit in his ss, and i told him it was the same thing, same size ect, then that guy says that they are not the same demensions and i wanted to make sure that they were before i tell him he is a dumb ***. he said they are not small blocks, they are diff sizes, and they are not interchangable. just wanted to reverify they are. thanks man
Before you can have a useful argument, you have to define the terms. One could argue that LT1's and 1st Gen. SBC's and LS1's are not interchangeable because you "always" have to make some mods. to do this.
However interchangability is only one of the criterion for classifying engines.
Many people have argued that the LS series engine should be in a seperate class, as they are so completely different, physically, from the other engines.
Many have argued that the LS engined Camaro's should be refered to as 5th Gens.
However it usually ends up being the manufacture who ultimately decides. And it appears that GM has desided that because the LS's have the same bore spacing as all other SBC's they will be classified as part of that series.
Old Dec 6, 2006 | 10:36 AM
  #6  
ILOVEGINA's Avatar
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Originally Posted by Z28SORR
Before you can have a useful argument, you have to define the terms. One could argue that LT1's and 1st Gen. SBC's and LS1's are not interchangeable because you "always" have to make some mods. to do this.
However interchangability is only one of the criterion for classifying engines.
Many people have argued that the LS series engine should be in a seperate class, as they are so completely different, physically, from the other engines.
Many have argued that the LS engined Camaro's should be refered to as 5th Gens.
However it usually ends up being the manufacture who ultimately decides. And it appears that GM has desided that because the LS's have the same bore spacing as all other SBC's they will be classified as part of that series.
so they are all sbc???? right? because that is pretty much the argument, some srt guy sayin they are not sbc's.
Old Dec 6, 2006 | 12:40 PM
  #7  
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From: Queens, New York City
find out what year ss and what year ws6 motor

97 and older, are lt1's they are second gen small blocks
98 and newer are ls1's, they are 3rd gen small blocks

2nd gen and 3rd gen small blocks are not interchangeable
they take up the same amount of space under the hood, but are drastically different
the 4.4 inch bore spacing in the 3rd gen is not "the reason" they call it a small block
simply put, its evolved, its the next step
the 3rd generation camaro doesnt look very much like the second generation
but its still the next generation
regardless it is up to the manufacturer and the manufacturer has decided that it is the 3rd generation design of the small block chevy

anyway
the motor that the srt guy was refering to, may not work with his car because of the induction assembly, it can work, but requires more parts and more money
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