The Grond Chronicles : LS1 & LS2, Side by Side <Pics> [Dialup; Cardiac Arrest
09-28-2006, 06:54 AM
#42
Supporting Tuner
Thread Starter
Originally Posted by Virtual Geezer
A couple of questions:
How much do the bare blocks weigh? Do the LS2 and LS1 seem similar in weight when you lift and move them?
How did Chevy arrive at the 6 liter displacement? Increased bore or stroke (maybe both) over the LS1 5.7 liter?
Thanks!
How much do the bare blocks weigh? Do the LS2 and LS1 seem similar in weight when you lift and move them?
How did Chevy arrive at the 6 liter displacement? Increased bore or stroke (maybe both) over the LS1 5.7 liter?
Thanks!
The blocks weigh the same.
The venerable small block Chevy is Generation II
LS1 = Gen III
LS2 & LS7 = Gen IV
My background is extensive radical small block and big block engine builds.
As a cursory comparison between Gen II, III and IV castings, the bellhousing pattern of the aluminum Gen-III block is identical to the traditional Gen-I/II pattern with the exception of one missing bolt on the passenger side. On the Gen-IV block, a boss has been added for the missing bolt, but it's not tapped.
This is one of the reasons that a TH400 will bolt up to a LSx engine - you just change the pilot bushing.
09-28-2006, 08:48 AM
#43
Le Mans Master
Originally Posted by EnglandGreen
Increase of bore to go from 346ci (5.7 litres) to 364ci (6.0 litres)
The blocks weigh the same.
The venerable small block Chevy is Generation II
LS1 = Gen III
LS2 & LS7 = Gen IV
My background is extensive radical small block and big block engine builds.
As a cursory comparison between Gen II, III and IV castings, the bellhousing pattern of the aluminum Gen-III block is identical to the traditional Gen-I/II pattern with the exception of one missing bolt on the passenger side. On the Gen-IV block, a boss has been added for the missing bolt, but it's not tapped.
This is one of the reasons that a TH400 will bolt up to a LSx engine - you just change the pilot bushing.
The blocks weigh the same.
The venerable small block Chevy is Generation II
LS1 = Gen III
LS2 & LS7 = Gen IV
My background is extensive radical small block and big block engine builds.
As a cursory comparison between Gen II, III and IV castings, the bellhousing pattern of the aluminum Gen-III block is identical to the traditional Gen-I/II pattern with the exception of one missing bolt on the passenger side. On the Gen-IV block, a boss has been added for the missing bolt, but it's not tapped.
This is one of the reasons that a TH400 will bolt up to a LSx engine - you just change the pilot bushing.
Thanks for the info, EG! Good luck!
09-28-2006, 09:04 AM
#45
Race Director
Member Since: Mar 2006
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Once again, Master, Grasshopper has learned something from you. Thanks for the pics and write-up, EG!
09-28-2006, 10:27 AM
#46
Pro
now get a ls7 and compare that block. when do you expect to finish with the whole car? my ls6 granaded back in feb and still no car. sorry to be off topic. i m shipping my car computer to ecs. who much should i insure it for. thanks. kvn
when do you expect to finish with the whole car? my ls6 granaded back in feb and still no car. sorry to be off topic. i m shipping my car computer to ecs. who much should i insure it for. thanks. kvn
09-28-2006, 04:12 PM
#48
Melting Slicks
Hey EG - I think it's about time to lose your "amateur" status and get your own cable TV show.
You could lose your day job and probably get all your stuff free from sponsors.
Stangkiller could join you as, well as Stangkiller.
THE CORVETTE FORUM CHANNEL!
I'd watch!
It would be such an improvement over those "other" how-to car shows.
Especially when the odd piston melts.
Now THAT's a REALITY SHOW ! !
You could lose your day job and probably get all your stuff free from sponsors.
Stangkiller could join you as, well as Stangkiller.
THE CORVETTE FORUM CHANNEL!
I'd watch!
It would be such an improvement over those "other" how-to car shows.
Especially when the odd piston melts.
Now THAT's a REALITY SHOW ! !
09-28-2006, 04:42 PM
#49
Intermediate
Member Since: Jun 2004
Location: Oxford PA
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Thanks for the warning for all the garage queens out there.
Otherwise, I would have had a heart attack when I saw the StangKiller brought his car out ...in the rain....
Otherwise, I would have had a heart attack when I saw the StangKiller brought his car out ...in the rain....
09-28-2006, 04:52 PM
#50
Burning Brakes
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St. Jude Donor '06
EG it's hard to believe the ls1 and ls2 blocks weigh the same the ls2 block looks so much bigger in the pics but thanks for the comparisions and make sure you fab up a mounting bracket for stangkillers new counterweight 
09-28-2006, 05:09 PM
#52
Supporting Tuner
Thread Starter
Originally Posted by Taxin
EG it's hard to believe the ls1 and ls2 blocks weigh the same the ls2 block looks so much bigger in the pics
09-28-2006, 06:42 PM
#56
Race Director
Great Pics! Thanks! I love how the LS1 block was brought back! I bet you just gave some of the garage queens a coronary! 
09-28-2006, 06:58 PM
#58
Supporting Tuner
Thread Starter
Originally Posted by NAVY08
where did you pick up the block? and what did you pay if you dont mind me asking?
