ID my block?
ID my block? I posted this on internal, but I think it's better suited here, c&p.
Just trying to gather as many specs as I can about this motor I purchased and was looking for some help.
Google hasn't really solidified my questioning.
Block Number: 12559378
Heads are 241
Intake: 12561184 (I understand this is the LS6 intake off an FBody)
I mainly curious about the year. Apparently there's enough of a different between the years to require separations for certain parts.
Thanks guys.
Just trying to gather as many specs as I can about this motor I purchased and was looking for some help.
Google hasn't really solidified my questioning.
Block Number: 12559378
Heads are 241
Intake: 12561184 (I understand this is the LS6 intake off an FBody)
I mainly curious about the year. Apparently there's enough of a different between the years to require separations for certain parts.
Thanks guys.
i have also been looking to see if my block is 04 or and older one for head studs and i cant find any answers at all. I may call the dealership to see if they would have any idea, just and idea.
12561168 denotes a LS6 block, so its a LS1 block for sure. What year isn't really possible to tell for sure, but its a 00-02. http://chevythunder.com/LS1%20components.htm
Since it has the F-body LS6 intake, its not a 00 mostlikely. Its a 01-02 LS1 block unless someone changed the intake, which in that case it could very well be a 00. Regardless, there are no differences to worry about. Everything interchanges.
Since it has the F-body LS6 intake, its not a 00 mostlikely. Its a 01-02 LS1 block unless someone changed the intake, which in that case it could very well be a 00. Regardless, there are no differences to worry about. Everything interchanges.
Last edited by squee; Jan 28, 2010 at 01:29 AM.
The head studs are not determined by the block. They go by which heads you are using. Their are only 2 diff head studs, as far as I know for an LS engine. Early engines prior to 04, Use a longer stud. After 04 they use a shorter stud. You can get the early stud in a 6 point or 12 point, But the later stud I believe only comes in 12 point.
Trending Topics
Not true. If you look at the numbers you can determine what years it could be, thus narrowing it down. If its not a LS6 block, than its a 02 or before thus no need to order the shorter studs.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
The head studs are not determined by the block. They go by which heads you are using. Their are only 2 diff head studs, as far as I know for an LS engine. Early engines prior to 04, Use a longer stud. After 04 they use a shorter stud. You can get the early stud in a 6 point or 12 point, But the later stud I believe only comes in 12 point.
The early engines used a combination of long and short bolts and the 04+ use all short bolts.
To the original poster, I believe you have an older block and you would need the pre-04 head bolts or studs. If you have any questions feel free to shoot me a message or give me a call.
__________________
800-456-0211 / PM / Facebook
WHIPPLE Superchargers, Procharger, Magnuson, Powerbond Sale, HPTuners packages!, Trickflow, AFR, PRC, CHE Trunion upgrade, $100 7.400" pushrod set, Custom Cam of your choice
800-456-0211 / PM / Facebook
WHIPPLE Superchargers, Procharger, Magnuson, Powerbond Sale, HPTuners packages!, Trickflow, AFR, PRC, CHE Trunion upgrade, $100 7.400" pushrod set, Custom Cam of your choice
TECH Fanatic
Joined: Jan 2010
Posts: 1,343
Likes: 2
From: South of Augusta,GA
12561168 denotes a LS6 block, so its a LS1 block for sure. What year isn't really possible to tell for sure, but its a 00-02. http://chevythunder.com/LS1%20components.htm
Since it has the F-body LS6 intake, its not a 00 mostlikely. Its a 01-02 LS1 block unless someone changed the intake, which in that case it could very well be a 00. Regardless, there are no differences to worry about. Everything interchanges.
Since it has the F-body LS6 intake, its not a 00 mostlikely. Its a 01-02 LS1 block unless someone changed the intake, which in that case it could very well be a 00. Regardless, there are no differences to worry about. Everything interchanges.
