ls2 vs ls3 block
ls2 vs ls3 block im trying to put together a fi build and was goana do a ls2 block with stock crank, forged rods and pistons....but now ive seen a few ls3 blocks foating around and heard they are actually stronger then ls2 blocks? is this true?
also im assuming they use the standard ls1 6.125 rod, and stock 3.622 stroke with the only differance being a 4.030 bore? if so it seems to be a good alternative to a 370 ci? if i use one of these i dont have to bore it and take meat from the sleeves, i can leave the sleeve alone and gain a few cubic inches
just to double check gm didnt take the ls2 block bore .030 over and stamped with a 6.2l on it is it? do they actaully have a differant sleeve in them that is comparibly think to the ls2 block? im worried about streingth most, and making sure it doesnt require a differant/special stoke/bore/rod
also im assuming they use the standard ls1 6.125 rod, and stock 3.622 stroke with the only differance being a 4.030 bore? if so it seems to be a good alternative to a 370 ci? if i use one of these i dont have to bore it and take meat from the sleeves, i can leave the sleeve alone and gain a few cubic inches
just to double check gm didnt take the ls2 block bore .030 over and stamped with a 6.2l on it is it? do they actaully have a differant sleeve in them that is comparibly think to the ls2 block? im worried about streingth most, and making sure it doesnt require a differant/special stoke/bore/rod
im trying to put together a fi build and was goana do a ls2 block with stock crank, forged rods and pistons....but now ive seen a few ls3 blocks foating around and heard they are actually stronger then ls2 blocks? is this true?
also im assuming they use the standard ls1 6.125 rod, and stock 3.622 stroke with the only differance being a 4.030 bore? if so it seems to be a good alternative to a 370 ci? if i use one of these i dont have to bore it and take meat from the sleeves, i can leave the sleeve alone and gain a few cubic inches
just to double check gm didnt take the ls2 block bore .030 over and stamped with a 6.2l on it is it? do they actaully have a differant sleeve in them that is comparibly think to the ls2 block? im worried about streingth most, and making sure it doesnt require a differant/special stoke/bore/rod
also im assuming they use the standard ls1 6.125 rod, and stock 3.622 stroke with the only differance being a 4.030 bore? if so it seems to be a good alternative to a 370 ci? if i use one of these i dont have to bore it and take meat from the sleeves, i can leave the sleeve alone and gain a few cubic inches
just to double check gm didnt take the ls2 block bore .030 over and stamped with a 6.2l on it is it? do they actaully have a differant sleeve in them that is comparibly think to the ls2 block? im worried about streingth most, and making sure it doesnt require a differant/special stoke/bore/rod
Trending Topics
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
yes supposedly they are. Only thing that changes are that LS3's which are in vettes, have a much different cam profile, along with minor small details that all add up very quickly to make those 435 horsepower compared to the 407 hp of the truck engines. Those details in the Vettes LS3 include lighter "hollow" valves, completely different and higher flowing exhaust, the cam like i said already, intake manifold, throttle body, air intake, Just a bunch of stuff. It all adds up 
I did a search a while back on these blocks were supposed to have some issues, like the bores being off center.(Cant find the pic's)
https://ls1tech.com/forums/showthrea...92#post6093221
https://ls1tech.com/forums/showthrea...92#post7990851
https://ls1tech.com/forums/showthrea...106&highlight=
Have they resolved these issues yet?
https://ls1tech.com/forums/showthrea...92#post6093221
https://ls1tech.com/forums/showthrea...92#post7990851
https://ls1tech.com/forums/showthrea...106&highlight=
Have they resolved these issues yet?
